%0 Journal Article %T THE INTERACTION PROCESS OF BLADE COG OF DISK-SHAPED SPRING WITH THE SOIL %A Shiriyazdanov, R.. %A Pikmullin, G.V. %A Yunusov, R.. %A Bulgariev, G.G. %K disk-shaped spring, soil, blade cog, helical surface. %J Vestnik of Kazan State Agrarian University %D 2016 %N 11 %P 3 %I Kazan state agrarian University