BIRKHOFF VARIETY THEOREM FOR MONADIC ALGEBRAS OVER EPIREFLECTIVE SUBCATEGORIES OF ¿-MODELS AND ITS CONNECTION WITH A PROBLEM OF THE EXISTENCE OF NONSURJECTIVE EPIMORPHiSMS

Article BIRKHOFF VARIETY THEOREM FOR MONADIC ALGEBRAS OVER EPIREFLECTIVE SUBCATEGORIES OF ¿-MODELS AND ITS CONNECTION WITH A PROBLEM OF THE EXISTENCE OF NONSURJECTIVE EPIMORPHiSMS was published on October 1, 1984 in the journal Demonstratio Mathematica (volume 17, issue 4).