Giles M. Marion
International Symposium on Ground Freezing (2nd 1980 Trondheim, Norway)
Herbert Victor
Arturo E. Corte
Unknown Author
T. William Lambe
L. L. Vasilʹev
Wiebke Müller-Lupp
Norbert V. DeByle
Harvey Campbell Wright
Wolfgang Orth
N. A. T͡Sytovich
Alfreds R. Jumikis
Mikhail Nikolaevich Morozov
Maxime Laqueille
I. A. Ti͡uti͡unov
National Research Council (US)
N. G. Trupak
National Research Council, Canada. Technical Information Service