00648naa#a2200169#i#4500001001600000005001700016011001400033100004100047102000700088200011300095210009900208215001100307608002700318675008700345700002500432856002100457EN\\bibl\10077220260206023514.5##a2307-7476##a20250630b2025####ek#y0engy0150####ca##aRU1#aANALYSIS OF LONG-TERM FLUCTUATIONS IN THE PUR RIVER WATER LEVEL TO ENSURE NAVIGATION SAFETYeJournal article1#aSaint-PetersburgcSaint-Petersburg University of State Fire Service of Emercom of Russiad2025##a16 с.##aJournal article2local##aГидросфера. Вода в целом. Общая гидрология. 556#1aVolkovagNadezhda A.4#ajournals.igps.ru