00523naa#a2200181#i#450# EN\INFRA-M\bibl\20729 20260522204407.5 2308-4898 20180425b2018####ek#y0engy0150####ca RUS RU Six-Measured Epure Nomogram in Four Oktant Measurement Journal article Moscow INFRA-M Academic Publishing LLC. 2018 8 с. Journal article local Математика. 51 RUS Levkin Yu. S. naukaru.ru