00556naa#a2200169#i#450# EN\\bibl\37284 20241101023249.5 2500-3372 20200423b2020####ek#y0engy0150####ca RU Competition Assessment as a Marketing Decisions Factor on Regional B2C Markets: Methodological Aspect Journal article Kemerovo Kemerovo State University 2020 9 с. Journal article local Mamontov Sergey Andreevich Chernobaeva Gulnara E. vestnik-bees.kemsu.ru