>Can anyone tell me which countries voted YES via popular vote and
>which by legislative fiat?
According to a table in today's FT:
Ratified by parliamentary vote (and a parl vote isn't exactly a fiat is it?): Austria, Belgium, Germany, Greece, Hungary, Italy, Lithuania, Slovakia, Slovenia
Parl vote & referendum: Spain
Up for parl vote: Cyprus, Estonia, Poland, Latvia, Malta, Sweden
To hold referendum: Czech, Denmark, Ireland, Luxembourg, Neth (the result we know), Poland, Portugal, UK