New and immediate problems in engineering geocryology, p. 348-357
by N.I. Saltykov
(Technical translation, 1276 . Principles of geocryology (permafrost studies) ; pt. 2 . Engineering geocryology ; ch. 13)
National Research of Canada, 1967
"From Academy of Sciences of the U.S.S.R., V.A. Obruchev Institute of Permafrost Studies, Moscow 1959"
National Research Council of Canada