M. J. Hibbard
William B. Simmons
Unknown Author
V. V. Velinskiĭ
Thomas L. Wright
Paul C. Hess
Philippe Rossi
John James Prucha
Alekseĭ Aleksandrovich Marakushev
M. A. Zharkov
Victor La Marr Swan
Anne L. Bloomfield
V. S. Shkodzinskiĭ
Russia) Geokhimicheskiĭ simpozium (1957 Moscow
T. N. Infantopulo
Deutsche Forschungsgemeinschaft.
S. A. Shcheka