PublicationQUESTION OF THE STABILITY OF THE ROOF OF STOPE ORES IN THE CONDITIONS OF CRYOLITHOZONE(STEF92 Technology, 2019-06-20, Lyubov Petrova)Exploration and Mining2019DOIstable outcrop sizesVetrov methodhorizontal spansformula for calculating spans of outcropsfracturing of a block of rocks.View record