Iosif Abramovich Petersilʹe
Nadir Karimovich Nadirov
William E. Harrison
International Atomic Energy Agency
George V. Chilingar
Iosif S. Goldberg
Unknown Author
Vera Nikolaevna Florovskaia
Institut geologii i razrabotki gori͡uchikh iskopaemykh (Soviet Union)
H. W. Halleck
R. S. Khisamov
V. S. Vyshemirskiĭ
Canada. Mines Branch.
International Symposium devoted to Tests on Bitumens and Bituminous Materials Budapest 1975