TY - BOOK AU - Komarnitskii, N. I. TI - ZONES AND PLANES OF WEAKNESS IN ROCKS AND SLOPE STABILITY U1 - 551.8 PY - 1968/// CY - New York PB - Consultants Bureau KW - Rock Slopes N1 - Includes Bibliography; Original Title : Vliyanie Zon I Poverkhnosstei Oslable-Niya V Porodakh Na Ustoichivost Otkosov ER -