00586naa#a2200181#i#450# EN\\bibl\21948 /en/manage/index 20250718094325.5 1609-3178 20180703b2018####ek#y0engy0150####ca RU Determination of Thickness of a Silver Covering on Finned Walls by the X-Ray Fluorescent Analysis Method Journal article Saint-Petersburg LLC SVEN 2018 3 с. Journal article local Polyansky Aleksandr Polyansky Vladislav test.editorum.ru /en/manage/index