Is there any
LaTeX package for acronyms/abbreviations that specifically targets Cyrillic (Russian/Ukrainian) users, with all that different cases (Dative, Accusative, etc.) they have in their languages.
I know about general packages for creating acronyms/abbreviations lists:
nomenclature, but they mostly deal with plural forms and not with cases.
EDIT: An answer
I looked again closely at the
glossaries package. I have found out that it supports up to 6 user defined forms of acronyms/abbreviations, so you can use them to specify different cases you need.