00494naa#a2200169#i#450# EN\\bibl\3287 20250122132839.3 2073-0462 20141010b2014####ek#y0engy0150####ca RUS RU The mass of root system of grassy vegetation on slope lands of exogenous type Journal article Kazan Kazan state agrarian University 2014 3 с. Journal article local Avtonomov Aleksey zh-szf.ru