00471naa#a2200169#i#450# EN\INFRA-M\bibl\408 20210416203347.5 2308-4898 20130725b2013####ek#y0engy0150####ca RUS RU Computer system use for methodical providing of graphic courses Article Moscow INFRA-M Academic Publishing LLC. 2013 2 с. Article local Boykov Aleksey riorpub.com