00559naa#a2200181#i#450# EN\\bibl\77740 20250403215106.4 1819-4036 20130825b2013####ek#y0engy0150####ca RUS RU THE EQUATIONS OF SOWING UNIT PATH AND SPEED WITH VARIABLE MASS IN THE LONGITUDINAL-VERTICAL PLANE Journal article Krasnoyarsk Krasnoyarsk State Agrarian University 2013 4 с. Journal article local . 631.33: 519.8 RUS Li V V kgau.editorum.ru