There was an article on the Croat dances in "Rattle Up My Boys!", the UK sword dance magazine sometime in 2014. I read it as necessary study material for my 2015 holiday.
I seem to remember something on the Czech dances too, though this may simply be a reaction from what i laughingly call my "memory". I have brought this discussion to the attention of Jeff Lawson, who edits RUMB, just to prod my recollections a bit.