00570naa#a2200181#i#450# EN\\bibl\14125 20250402071143.3 1999-8775 20150630b2015####ek#y0engy0150####ca RUS RU Definition of mathematical models for choosing the rational processing conditions SPD. Journal article Bryansk Bryansk State Technical University 2015 5 с. Journal article local Fedonin Oleg Nikolaevich Steposhina Svetlana Viktorovna bstu.editorum.ru