A.P. Tonchev, C. Angell, M. Boswell, A. Chyzh, C.R. Howell, H.J. Karwowski, J.H. Kelley, W. Tornow, N. Tsoneva, and Y.K. Wu. Study of Collective Dipole Excitations below the Giant Dipole Resonance at HIGS. AIP Conf. Proc. 891, 339 (2007).

A. Tonchev, A. Crowell, B. Fallin, C. Howell, A. Hutcheson, W. Tornow, J. Kelley, C. Angell, H. Karwowski, R. Pedroni, J. Becker, D. Dashdorj, R. Macri, J. Wilhelmy, E. Bond, J. Fitzpatrick, A. Slemmons, D. Vieira. Measurement of the ²⁴¹Am(n,2n) Reaction Cross Section with the Activation Technique. Bull. Am. Phys. Soc. Tennessee 51 (2006) 35.

D.M. Mei, S. Elliott, A. Hime, A. Tonchev, W. Tornow, M. Antonacci, A. Chyzh, J. Esterline, B. Fallin, C. Howell, A. Hutcheson, H. Karwowski, J. Kelley, M. Kidd, B. Spaun. Neutron excitation of lead and copper in search for specific excited state decays. Bull. Am. Phys. Soc. Tennessee 51 (2006) 106.

B.N. Spaun, M.A. Atonacci, A.P. Tonchev, W. Tornow. Partial neutron induced gamma-ray cross section measurements of Pb at 8 and 12 MeV for background subtraction of neutrinoless double beta decay-decay experiments. Bull. Am. Phys. Soc. Tennessee 51 (2006) 63.

M. Antonacci, A. Chyzh, J.H. Esterline, S. Elliot, B. Fallin, A. Hime, C.R. Howell, A Hutcheson, H.J. Karwowski, J.H. Kelley, M.F. Kidd, D. Mei, B. Spaun, A.P. Tonchev, W. Tornow. Precision (n,xn gamma) cross-section measurement of Cu at 8 and 12 MeV for shielding designs for the next generation of 2betha- decay experiments. Bull. Am. Phys. Soc. Tennessee 51 (2006) 48.

M.F. Kidd, J.H. Esterline, B. Fallin, A. Hutcheson, A.P. Tonchev, W. Tornow, J.H. Kelley. Results for the Cross Section of the Reaction ¹²C(n,n'). Bull. Am. Phys. Soc. Tennessee 51 (2006) 19.

M. Boswell, C. Angell, H.J. Karwowski, J. Engel, J.H. Kelley, A.P. Tonchev, W. Tornow. Probing the Pygmy Dipole Resonance in ¹¹²Sn and ¹²⁴Sn. Bull. Am. Phys. Soc. Tennessee 51 (2006) 70.

V. Werner, N. Pietralla, P. von Brentano, U. Kneissl, H.H. Pitz, A. Tonchev, M.W. Ahmed, C. Fransen, H. von Garrel, C. Kohstall, J. Li, A. Linnemann, S. Muller, I.V. Pinayev, D. Savran, M. Scheck, F. Stedile, W. Tornow, S. Walter, H.R. Weller, and Y.K. Wu. New findings for mixed-symmetry states. Capture Gamma-ray Spectroscopy and Related Topics, ed. A. Woehr and A. Aprahamian, AIP Conf. Proc. 819, Melville, NY (2006), p.340.

A.P. Tonchev, C. Angell, M. Boswell, C.R. Howell, H.J. Karwowski, J.H. Kelley, W. Tornow, N. Tsoneva. Low-Energy Dipole Modes of Excitation Below the Neutron Separation Energy. Capture Gamma-ray Spectroscopy and Related Topics, ed. A. Woehr and A. Aprahamian, AIP Conf. Proc. 819, Melville, NY (2006), p.350.

C.T. Angell, H.J. Karwowski, J.H. Kelley, A.P. Tonchev, and W. Tornow. Photo-Induced Population of the h_11/2 Isomeric States in (gamma,n) Reactions. Capture Gamma-ray Spectroscopy and Related Topics, ed. A. Woehr and A. Aprahamian, AIP Conf. Proc. 819, Melville, NY (2006), p.363.

A. Tonchev, W. Tornow, C. Angell, M. Boswell, H. Karwowski, J. Kelley, J. Li, S. Mikhailov, Y. Wu, N. Tsoneva. Nuclear Structure Physics at HIGS: Parity Assignments to Levels in ¹³⁸Ba. Bull. Am. Phys. Soc. Hawaii 50 (2005) 176.

M. Boswell, C. Angell, H. Karwowski, J. Kelley, A. Tonchev, W. Tornow, N. Tsoneva. Probing the Pygmy Dipole Resonance in ¹²⁴Sn. Bull. Am. Phys. Soc. Hawaii 50 (2005) 177.

A. Hutcheson, A.S. Crowell, B. Fallin, C.R. Howell, J. Kelley, M. Kiser, A.P. Tonchev, W. Tornow, R.S. Pedroni, G.J. Weisel, J.A. Becker, D. Dashdor, R.A. Macri, N. Fotiades, R.O. Nelson. Neutron-Induced Partial Gamma-Ray Cross-Section Measurements on Uranium Using a Monoenergetic and Pulsed Beam at TUNL. Bull. Am. Phys. Soc. Hawaii 50 (2005) 165.

W. Tornow, A.P. Tonchev, J.H. Esterline, C.R. Howell, H.J. Karwowski, J.H. Kelley, J. Li, S.F. Mikhailov, I.V. Pinayev, Y.K. Wu, H. Witala. Two-and three- body breakup of ³He at low energies. Bull. Am. Phys. Soc. Hawaii 50 (2005) 67.

W. Tornow, J.H.Esterline, C. Howell, H.J. Karwowski, J.H. Kelley, A.P. Tonchev, J.Li, S.F. Mikhailov, I.V. Pinayev, Y.K. Wu, G.J. Weisel and H. Witala. Photon analysing power for the three-body breakup of 3He at E_g=15.0 MeV. The 19^th European Conference on Few-Body Problems in Physics. Groningen, The Netherlands 23-27, August 2004, pp. 138-140.

A. Tonchev, M. Ahmed, B. Perdue, K. Sabourov, W. Tornow, H. Weller, I. Pinaev, J. Li, Y.Wu, G. FeldmanJ. Chen, S. Yates. C. Francen, N. Pietralla. Nuclear Structure Physics at HIGS: Parity assignments to levels in ⁹²Zr and ⁹⁶Mo. Divisions of Nuclear Physics, Tucson, Oct. 29-Nov. 1 2003; Bull. Am. Phys. Soc. 48 (2003) 30.

N. Pietralla, M.W. Ahmed, C. Fransen, V.N. Litvinenko, A. Tonchev, H.R. Weller. Nuclear Structure Physics with a Free Electron Laser. Frontiers of Nuclear Structure, ed. P. Fallon and R. Clark, AIP No. 656 AIP, Melville, NY, 2003, p.365.

B. Perdue, M. Ahmed, A. Tonchev, W. Tornow, H. Weller, V. Litvinenko, I. Pinaev, J. Li, Y.Wu, R. Prior, M. Spraker, G. Feldman, B. Sawatzky, B. Norum. Compton Scattering by Nuclei at HIGS. Divisions of Nuclear Physics, Tucson, Oct. 29-Nov. 1 2003; Bull. Am. Phys. Soc. 48 (2003) 75.

A. Sabourov, M. Ahmed, A. Crowell, C. Howell, K. Joshi, S. Nelson, B. Perdue, K. Sabourov, A. Tonchev, H. Weller, R. Prior, M. Spraker, N. Kalantar. Measurement of the ⁷Li(d,n)⁸Be Reaction at Astrophysical Relevant Energies. Divisions of Nuclear Physics, Tucson, Oct. 29-Nov. 1 2003; Bull. Am. Phys. Soc. 48 (2003) 83.

A.P. Tonchev, S.O. Nelson, K. Sabourov, M.W. Ahmed, K. Joshi, H.R. Weller. Analyzing Power for the ¹¹B(p,gamma)¹²C Reaction at Astrophysically Relevant Energies. Divisions of Nuclear Physics, East Lansing, Michigan, October 9-12, 2002; Bull. Am. Phys. Soc. 47 (2002) 69.

A.P. Tonchev, E.G. Bilpuch, C.D. Bowman, A.S. Crowell, C.R. Howell, K. McCabe, G.A. Smith, W. Tornow, R.L. Walter, V. Vylet. Measurement of benchmark nuclear data for thermal spectrum transmutation calculation. ICENES 2002. 29 September – 4 October, Albuquerque, NM.

Bilpuch, A.S. Crowell, C.R. Howell, A.P. Tonchev, W. Tornow, V. Vylet, R. L. Walter, G.A. Smith, K. McCabe, and C.D. Bowman, Design and Construction of the First U. S. Transmutation Experiment. ICENES 2002. 29 September – 4 October, Albuquerque, NM.

C.R. Howell, E.G. Bilpuch, C. D. Bowman, A.S. Crowell, C.R. Howell, K. McCabe, G. A. Smith, A.P. Tonchev, W. Tornow, V. Vylet. Accelerator-Driven Waste Transmutation and Nuclear Energy Production from Thorium without Reprocessing and Recycling, ICENES 2002. 29 September – 4 October, Albuquerque, NM.

C.R. Howell, E.G. Bilpuch, C. D. Bowman, A.S. Crowell, C.R. Howell, K. McCabe, G. A. Smith, A.P. Tonchev, W. Tornow, V. Vylet. First Studies of the Coupling of the Accelerator to a Subcritical Multiplying System for the Thermal Spectrum Transmutation. ICENES 2002. 29 September – 4 October, Albuquerque, NM.

C.R. Howell, E.G. Bilpuch, C. D. Bowman, A.S. Crowell, C.R. Howell, K. McCabe, G. A. Smith, A.P. Tonchev, W. Tornow, V. Vylet. Measurement of Transport Properties of Graphite for the Transmutation Experiment. ICENES 2002. 29 September – 4 October, Albuquerque, NM.

A.P. Tonchev, S.O. Nelson, K. Sabourov, B.T. Crowley, H.R. Weller. The ¹⁰B(p,gamma)¹¹C Reaction at Astrophysically Relevant Energies. First Joint Meeting of the Nuclear Physics Divisions of APS and JPS, Hawaii, 17-20 October 2001; Bull. Am. Phys. Soc. 46 (2001) 64.

S.O. Nelson, B.T. Crowley, C.D. Nesaraja, K. Sabourov, A.P. Tonchev, H.R. Weller, J.H. Kelley, D.R. Tilley, R.M. Prior, M.C. Spraker. Evidence for a resonance at 126 keV in the ¹⁴N(p,gamma)¹⁵O reaction. First Joint Meeting of the Nuclear Physics Divisions of APS and JPS, Hawaii, 17-20 October 2001; Bull. Am. Phys. Soc. 46 (2001) 64.

N. Pietralla, Z. Berant, M. Ahmed, A.P. Tonchev, H.R. Weller, V.N. Litvinenko. Nuclear Resonance using an FEL generated gamma-beam. First Joint Meeting of the Nuclear Physics Divisions of APS and JPS, Hawaii, 17-20 October 2001; Bull. Am. Phys. Soc. 46 (2001) 38.

E.C. Longhi, V.N. Litvinenko, W. Tornow, A.P. Tonchev, J.H. Kelley, Bragg-Diffraction Measurement Using a High-Intensity Semi-Mono-Energetic gamma-ray Beam from the HIGS facility. First Joint Meeting of the Nuclear Physics Divisions of APS and JPS, Hawaii, 17-20 October 2001; Bull. Am. Phys. Soc. 46 (2001) 91.

M. Amthor, H.R. Weller, M. Ahmed, S.O. Nelson, A. Sabourov, K. Sabourov, A.P. Tonchev, W. Rellergert, R.M. Prior, M.C. Spraker. J.H. Kelley, Cosmic Ray Rejection with Plastic Scintillator Shields. First Joint Meeting of the Nuclear Physics Divisions of APS and JPS, Hawaii, 17-20 October 2001; Bull. Am. Phys. Soc. 46 (2001) 97.

A.P. Tonchev, F. Harmon, Yu. P. Gangrsky, A.G. Belov, P. Zuzaan, N. Tsoneva. Pre-equilibrium Decay of Medium Mass Isotopes with Isomer Excitation in Photonuclear Reactions. Abstract to Nuclear Structure 2000, August 15-19, East Lansing, Michigan.

A.P. Tonchev, F. Harmon, T.J. Collens, K. Kennedy, A. Sabourov, Y. Harker, D.W. Nigg, J.L. Jones. Uranium target for electron accelerator based neutron source for BNCT. Sixteen International Conference on the Application of Accelerators in Research and Industry, November 1-4, Denton, Texas (2000) 877-880.

T.J. Collens, A.P. Tonchev, R.M. Jaber, K. C. Kennedy, and F. Harmon. Simulation of Cosmic Neutron Flux Using an Electron Linac. Sixteen International Conference on the Application of Accelerators in Research and Industry, November 1-4, Denton, Texas (2000) 675-678.

N. Tsoneva, Ch. Stoyanov, Yu. P. Gangrsky, V. Yu. Ponomarev, N. P. Balabanov, A.P. Tonchev. Isomeric Ratios in odd N=81 Isotones. Capture Gamma-Ray Spectroscopy and Related Topics. 10^th International Symposium. Santa Fe, New Mexico, 30 August –3 September (1999) 753 – 756.

A. Tonchev, F. Harmon, B.D. King. Excitation of the ^180mTa Isomer in (gamma,n) Reactions. Application of Accelerators in Research and Industry. Proceedings of the Fifteenth International Conference, Denton, Texas, (1998) 231-234.

R. Brey, F. Harmon, D. Wells, A. Tonchev. Photon Activation Analysis of Radionuclides at Environmental-Levels. The 6^th International Conference on Nuclear Engineering, San Diego, California, USA, May 10-15 (1998) 620-621.

A.P. Tonchev, Yu.P. Gangrsky, A.G. Belov. New Candidates for High Spin Isomeric Targets. 1998 Symposium on Radiation Measurements and Applications, Ann Arbor, Michigan, USA, May 11-14 (1998).

A.P. Tonchev, J.F. Harmon, B. King. Application of Low Energy Photon Spectroscopy in Isomer Production of Hf, W, Ir, Pt, Au and Hg Using (gamma,gamma') Reactions from 6-9 MeV. 1998 Symposium on Radiation Measurements and Applications, Ann Arbor, Michigan, USA, May 11-14 (1998).

A.P. Tonchev, J.F. Harmon, R. Brey. Linac Analysis of Ore Samples by Employng Photon Activation of the Metastable States of Gold and Silver. 1998 Symposium on Radiation Measurements and Applications, Ann Arbor, Michigan, USA, May 11-14 (1998).

A.P. Tonchev^†, Yu.P. Gangrsky, A.G. Belov. Excitation of High-spin Isomeric States in Photonuclear Reactions. Advances in Nuclear Physics and Related Areas. Thessaloniki - Greece. 8 - 12 July (1997).

N. Balabanov, Hr. Hristov, Yu.P. Gangrsky, A. Tonchev^†, A. Belov. Excitation of Isomeric States in Isotones (N=82) by (gamma,n) Reactions. Proc. 3rd General Conference of the Balkan Physical Union, BPU-3, 2-5 September, 1997, Cluj-Napoca, Romania, Programme and Abstracts, 1P-023, p.41.

A.P. Tonchev^†, A.G. Belov, Yu.P. Gangrsky, N.P. Balabanov. Excitation of Isomeric States h_11/2 in Photonuclear Reactions. Int. Conf. on Nuclear Spectroscopy and Nuclear Structure of the Atomic Nuclei, S.Petersburg (1995) 259 (in Russian).

A.P. Tonchev^†, A.G. Belov, Yu.P. Gangrsky, H.G. Hristov, and S.N. Dmitriev. Possibility of Production of the ¹⁴³Pm Isotope with Microtron Bremsstrahlung Gamma Rays. 1994 Symposium on Radiation Measurements and Applications, Ann Arbor, Michigan, USA, May 16-19 (1994).

A.D. Antonov, N.P. Balabanov, Hr.G. Hristov, M.P. Mitrikov, S.G. Marinova, K. Srentz, V.D. Tcholakov, A.P. Tonchev, A.G. Belov. Multielemental Gamma-and Neutron Activation Analysis of Coal and the Products of its Combustion. Balkan Physics Letters, vol. 2, part two (1994) 1869-1873.

N.P. Balabanov, A.G. Belov, Yu.P. Gangrsky, H.G. Hristov, F.G. Kondev, A.P. Tonchev. An Excitation of Isomeric States in the (gamma,n) Reactions on Heavy Nuclei. Balkan Physics Letters, vol. 2, part one (1994) 942-945.

N.P. Balabanov, A.G.Belov, H.G.Hristov, F.G.Kondev, A.P.Tonchev. Study of Reactions (,n)^m for Nuclei in Region 70<A<125. Balkan Physics Letters, vol. 2, part one (1994) 935-937.

N.P. Balabanov, A.G.Belov, Yu.P.Gangrsky, H.G.Hristov, F.G.Kondev, A.P.Tonchev. An Excitation of Isomeric States in the (gamma,n) Reactions on Heavy Nuclei. Balkan Physics Letters, vol. 2, part one (1994) 942-945.

N.P. Balabanov, A.G. Belov, Yu.P. Gangrsky, F.G. Kondev, and A.P. Tonchev^†. Excitation Function of ¹³⁸Ce(gamma,n)^137mCe Reaction in the Giant Dipole Resinance Region. Proceedings of the 44th Nucl. Spectroscopy and Nucl. Structure Conference at S.Petersburg, Russia (1994) 202 (in Russian).

N.P. Balabanov, A.G. Belov, Yu.P. Gangrsky, F.G. Kondev, A.P. Tonchev^†. Excitation of Isomeric States in Photonuclear Reactions ¹⁴⁹Sm(gamma,p)¹⁴⁸Pm, ¹⁷⁵Lu(gamma,n)¹⁷⁴Lu, ^196,198Hg(gamma,n)^195,197Hg in Giant Dipole Resonanse. Proceedings of the 44th Nucl. Spectroscopy and Nucl. Structure Conference at S.Petersburg, Russia (1994) 203 (in Russian).

E.M. Kozulin, Yu.A. Muzichka, B.I. Pustylnik, V.S. Salamatin, A.P. Tonchev, D. Hilscher, U. Jahnke, H. Rossner, B. Gebauer, D. Polster, G. Roeschert. Investigation of Neutron Emission in the Fission of Excited Compound Nuclei with Z > 92. International School-Seminar on Heavy Ion Physics, Dubna, Russia, vol.1 (1993) 241-246.

N.P. Balabanov, Yu.P. Gangrsky, F.G. Kondev, A.P. Tonchev^†. Investigation of the ²³⁸U(gamma,alpha)²³⁴Th Reaction on the Beam of Bremsstrahlung Gamma Quanta. Proceedings of the 43rd Nucl. Spectroscopy and Nucl. Structure Conference at Dubna, Russia (1993) 399 (in Russian).

N.P. Balabanov, A.G. Belov, Yu.P. Gangrsky, A.P. Tonchev, F.G. Kondev, M.G. Mitrikov. Population of High Spin Isomers in (gamma,gamma') Reactions. Proceedings of the 43rd Nucl. Spectroscopy and Nucl. Structure Conference at Dubna, Russia (1993) 398 (in Russian).

S.A. Karamian, B. Gorski, A.P. Tonchev, E.Yu. Nikolski, B.G. Novatcki. Search for Long-lived Hf Isomers. Proceedings of the 43rd Nucl. Spectroscopy and Nucl. Structure Conference at Dubna, Russia (1993) 99 (in Russian).

A.G. Belov, Yu.P. Gangrsky, F.G. Kondev, A.P. Tonchev^†, N.P. Balabanov. Photo-Activation of ^137mCe in the Region of Giant Dipole Resonance. Workshop on the Application of Microtrons in Nuclear Physics, 22-24 September 1992, Plovdiv, Bulgaria, D15-93-80 (1992) 106-108.

N.P. Balabanov, H.G. Hristov, F.G. Kondev, Yu.P. Gangrsky, A.P. Tonchev. Investigation of Alpha and Cluster Emission in Photonuclear Reactions in the Region of Giant Dipole Resonance. Workshop on the Application of Microtrons in Nuclear Physics, 22-24 September 1992, Plovdiv, Bulgaria, D15-93-80, (1992) 99-105 (in Russian).

A.G. Belov, F.G. Kondev, Yu.P. Gangrsky, A.P. Tonchev. Investigation of (gamma,n) Reactions Near Binding Neutron Energy. Workshop on the Application of Microtrons in Nuclear Physics, 22-24 September 1992, Plovdiv, Bulgaria, D15-93-80 (1992) 82-92 (in Russian).

N.P. Balabanov, H.G. Hristov, F.G. Kondev, and A.P. Tonchev. A Possibility of Application of the Microtron MT-25 in Plovdiv University. Workshop on the Application of Microtrons in Nuclear Physics, 22-24 September 1992, Plovdiv, Bulgaria, D15-93-80 (1992) 53-62 (in Russian).

V.S. Salamatin, E.M. Kozulin, A.P. Tonchev, G.G. Chubarian, M.G. Itkis, A.Ya. Rusanov, G.N. Smirenkin. Investigation of Nuclear Fission in the Businaro-Gallone Point. Proceedings of the 42nd Nucl. Spectroscopy and Nucl. Structure Conference at Alma-Ata, Kazakstan (1992) 307 (in Russian).

S.A. Karamyan, Yu.T. Oganesyan, A.P. Tonchev, V.G. Vinogradov. Activation of Aluminum Foils by 25-45 He Ions. Proceedings of the 42nd Nucl. Spectroscopy and Nucl. Structure Conference at Alma-Ata, Kazakstan (1992) 291 (in Russian).

Yu.P. Gangrsky, A.P. Tonchev^†, F.G. Kondev, M. Marinov, N.P. Balabanov. The Yields of Rare Earth Elements by Photofission of ²³⁸U. Proceedings of the 42nd Nucl. Spectroscopy and Nucl. Structure Conference at Alma-Ata, Kazakstan (1992) 111 (in Russian).

N.P. Balabanov, A.G. Belov, A.P. Tonchev, Yu.P. Gangrsky, F.G. Kondev. Photo Excitation of the ¹⁹⁰Os and ²⁰⁴Pb Isomers in the Energy Region of 8-11 MeV. Proceedings of the 42nd Nucl. Spectroscopy and Nucl. Structure Conference at Alma-Ata, Kazakstan (1992) 248 (in Russian).

Yu.P. Gangrsky, A.P. Tonchev^†, N.P. Balabanov, H.G. Hristov, F.G. Kondev, V.D. Tcholakov. Isomeric Yield Ratio of ¹³⁴I in the Photofission of ²³²Th and ²³⁸U. International Workshop on Dynamical Aspects of Nuclear Fission, Smolenice, CSFR (1991) 17-21.

N.P. Balabanov, A.G. Belov, A.P. Tonchev^†, G. Perez, H.G. Hristov, F.G. Kondev, L.P. Kulkina. Application of the Low Energy Photon Spectroscopy in the Gamma Activation Analysis of Au, Hg, Tl, Pb. Proceedings of the 41st Nucl. Spectroscopy and Nucl. Structure Conference at Minsk, USSR (1991) 463 (in Russian).

N.P. Balabanov, B. Glaisberg, F.G. Kondev, L.P. Kulkina, A.P. Tonchev^†, Kh.G. Khristov, and V.D. Cholakov. Gamma Activation Analysis of Rare Earth Elements in Uranium Rocks. Proceedings of the 41st Nucl. Spectroscopy and Nucl. Structure Conf. at Minsk, USSR (1991) 462 (in Russian).

A.D. Antonov, N.P. Balabanov, A.G. Belov, F.G. Kondev, G. Peres, H.G. Hristov, A.P. Tonchev. Isomer Ratios in (gamma,n) Reactions for the Nuclei in Range of 70<A<125. Proceedings of the 41st Nucl. Spectroscopy and Nucl. Structure Conference at Minsk, USSR (1991) 286 (in Russian).

A.D. Antonov, N.P. Balabanov, Yu.P. Gangrsky, A.P. Tonchev, F.G. Kondev, H.G. Hristov. Cross Section Measurements of the (gamma,alpha) Reactions for ⁹⁶Zr, ⁹³Nb, ⁹²Mo Nuclei in the Giant Resonance Region. Proceedings of the 41st Nucl. Spectroscopy and Nucl. Structure Conference at Minsk, USSR (1991) 285 (in Russian).

A.D. Antonov, N.P. Balabanov, Yu.P. Gangrsky, F.G. Kondev, S.G. Marinova, A.P. Tonchev, Kh.G. Khristov, and V.D. Cholakov. Integral Cross Section of (gamma,alpha) Reactions in the Giant Dipole Resonance Region. Proceedings of the 41st Nucl. Spectroscopy and Nucl. Structure Conference at Minsk, USSR (1991) 284 (in Russian).

H.G. Hristov, A.P. Tonchev^†, N.P. Balabanov, S.G. Marinova, V.D. Tcholakov. Instrumental Gamma Activation Analysis of Uranium Rocks. The third symposium on nuclear methods application in industry. Plovdiv, Bulgaria (1988) 10-15 (in Russian).

^† The authors follow in alphabetical order in work performed at JINR, Dubna, Russia. The author responsible for the publication is indicated with ^†.