Blanka Kozlíková Vitezslav Svejdar On interplay of quantifiers in Gödel-Dummett fuzzy logics. 569-580 2006 45 Arch. Math. Log. 5 http://dx.doi.org/10.1007/s00153-005-0322-y db/journals/aml/aml45.html#KozlikovaS06