00535naa#a2200169#i#450# EN\\bibl\113147 20260118200718.7 2311-1402 20101225b2010####ek#y0engy0150####ca RUS RU Novye podkhody k otsenke sotsial'no-ekonomicheskikh izmeneniy v Evrope i Amerike v pervoy polovine XIX v. Journal article Nizhnevartovsk Nizhnevartovsk State University 2010 6 с. Journal article local Stepanova V V vestnik.nvsu.ru