Do you know any good resources for learning Russian aimed at (native) speakers of some other slavic language? I have a few yugoslav textbooks, for instance "Ruski u 100 lekcija" (Špis, Gavela) which seems good.
But I think I could make good use of a good Russian textbook written in e.g. Czech. I wouldn't understand the Czech - I'm just looking for a good pedagogical approach for someone who already speaks a language relatively similar to Russian. If not in vocabulary, any slavic speaker is fluent in almost all the gramatical structures present in the other ones, so the approach to learning the language should be different than for a native French-speaker, let's say.
There are many books and other resources out there. I'm asking specifically for what you would say are the really good ones, worth spending some money on. Thank you.