00568naa#a2200193#i#450# EN\\bibl\2000 20241119205216.2 1992-5980 20140331b2014####ek#y0engy0150####ca RUS RU Determining location radii of gear chain pivot locus on involute sprocket wraps Journal article rostov on don Don state technical University 2014 6 с. Journal article local Voyna Andrey Berezhnoy Sergey Kurapov Georgiy naukaru.ru