00729naa#a2200193#i#450# EN\\bibl\10124 /en/manage/index 20250224003747.1 2308-8877 20151203b2015####ek#y0engy0150####ca RUS RU Mathematical model of the ids fix the vertical mine trunk taking into account initial porosity of material and the depth of the occurrence Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2015 4 с. Journal article local Gotsev Dmitriy Perunov Nikolay test.editorum.ru /en/manage/index