I'll try to dig it back up later, having a bit of trouble finding it again because modern search is shit and heavily favors tangential at best recent events even with clear requests.

As for the vote and in Crimea, as I've been saying, there's extremely reasonable doubt of authenticity given the vote was held after Russia seized the area. Russia held an election in which the result was what Russia wanted by margins in gross excess of what recent polling suggested the people actually wanted.

About Donbass, I don't really remember the specifics at this moment, but I recall getting into it with someone about that topic a few weeks ago. If you wanna look back in my comment history probably 2-4 weeks, I found sources for the poll, various issues with the Crimean referendum, and some stuff on Donbass I don't recall at the moment.