00639naa#a2200217#i#450# EN\INFRA-M\bibl\20726 /en/manage/index 20250330150423.7 2308-4898 20180425b2018####ek#y0engy0150####ca RUS RU Geometry of Electrostatic Fields Journal article Moscow INFRA-M Academic Publishing LLC. 2018 9 с. Journal article local Математика. 51 RUS Grafskiy O. A. Ponomarchuk Yu. V. Holodilov Aleksandr Andreevich test.editorum.ru /en/manage/index