00542naa#a2200169#i#450# EN\\bibl\1942 20240505051527.7 1995-0411 20140331b2014####ek#y0engy0150####ca RUS RU Geographic researches of Nerchinsk expedition in Siberia in the middle of XVIII century Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 6 с. Journal article local Bereznitskiy Sergey spst-journal.editorum.ru