00557naa#a2200193#i#450# EN\INFRA-M\bibl\17343 20260117075724.6 2308-4898 20170704b2017####ek#y0engy0150####ca RUS RU The Nonlinear Forms in Engineering Geometry Journal article Moscow INFRA-M Academic Publishing LLC. 2017 8 с. Journal article local Математика. 51 RUS Ivanov Gennadiy Sergeevich Dmitrieva I. M. zh-szf.ru