00638naa#a2200193#i#450# EN\\bibl\53692 /en/manage/index 20250221101530.5 1992-8181 20200325b2020####ek#y0engy0150####ca RUS RU Analysis of the positional geometric factor in combined GNSS Journal article Novorossiysk Budget Educational Institution of Higher Education “Admiral Ushakov State Maritime University” 2020 4 с. Journal article local . 621.396/629.123 RUS Birmenko D O fht.editorum.ru /en/manage/index