00615naa#a2200193#i#450# EN\\bibl\2940 20241213001354.5 1995-042X 20140626b2014####ek#y0engy0150####ca RUS RU Method of paired comparisons as contributing to solving ecological problems of wastewater sludge processing Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 11 с. Journal article local Subbotin Kirill Panova Marina Tyger Lyubov rguts.editorum.ru