M. P. Volarovich
I. T. Aĭtmatov
Fedor Alekseevich Abramov
N. F. Zamesov
Unknown Author
Mikhail Vladimirovich Kurleni︠a︡
Gennadiĭ Aleksandrovich Sobolev
United States Symposium on Rock Mechanics "Site characterization". (17th August 25-27, 1976 Snowbird, Utah).
T. J. Orr
Khamis Y. Haramy
Frank S. Spear
Robert George Kerr Morrison
G. E. I︠A︡kovit︠s︡kai︠a︡
Carl E. Norman
J. K. Whyatt
Isaacson, E. de St. Q.
Nikolaĭ Antoninovich Filatov
International Strata Control Congress (1958 Leipzig, Germany)
V. S. Voĭtenko