00492naa#a2200145#i#450# EN\AUS PUBLISHERS\bibl\5343 20241113094448.3 20210804b2021####ek#y0engy0150####ca RU ON THE APPLICATION OF PARTIAL OPERATIONS FOR THE DESCRIPTION OF INFORMATION SYSTEMS Conference article/thesis Melbourne AUS PUBLISHERS 2021 3 с. Conference article/thesis local Arapina-Arapova Elena Sergeevna w-science.com