00608naa#a2200205#i#450# EN\\bibl\13927 20250121061713.2 2071-7318 20161225b2016####ek#y0engy0150####ca RUS RU THE DEVELOPMENT OF COMPOSITIONS OF BACKFILLING MIXTURES Journal article Belgorod Belgorod State Technological University named after V.G. Shukhov 2016 3 с. Journal article local Ageeva Marina Sopin Mikhail Lesovik Ruslan Bogusevich Galina zh-szf.ru