00633naa#a2200193#i#450# EN\\bibl\52870 /en/manage/index 20250203101138.1 2587-9936 20190625b2019####ek#y0engy0150####ca RUS RU Valve J. A. Fleming: background and its invention Journal article Sevastopol Federal State Educational Institution of Higher Education Sevastopol State University 2019 20 с. Journal article local . 621.37-621.39(091) RUS Pestrikov Viktor Mihaylovich test.editorum.ru /en/manage/index