00483naa#a2200181#i#450# EN\RIOR\bibl\8379 20241109063539.6 2308-0191 20151225b2015####ek#y0engy0150####ca RUS RU Study of clay-soil with core stamp Journal article Moscow Publishing Center RIOR 2015 4 с. Journal article local Lyashenko Pavel Lyashenko Evgeniy riorpub.com