Generalization of the concept of variety and quasivariety to partial algebras through category theory
H. Andréka ; I. Németi
GDML_Books, (1983), p.

CONTENTSIntroduction ................................................................................................5§1. The purely category theoretical version of Birkhoff's theorem................7§2. Category theoretical study of generalized identities............................19§3. Generalized identities in partial algebras.............................................29§4. Calculus...............................................................................................41§5. Examples.............................................................................................47§6. Some model-theoretic consequences.................................................48References...............................................................................................50

EUDML-ID : urn:eudml:doc:268468 
@book{bwmeta1.element.zamlynska-501e312d-2b1c-4691-92a6-a3af4587bbea,
     author = {H. Andr\'eka and I. N\'emeti},
     title = {Generalization of the concept of variety and quasivariety to partial algebras through category theory},
     series = {GDML\_Books},
     publisher = {Instytut Matematyczny Polskiej Akademi Nauk},
     address = {Warszawa},
     year = {1983},
     zbl = {0518.08007},
     language = {en},
     url = {http://dml.mathdoc.fr/item/bwmeta1.element.zamlynska-501e312d-2b1c-4691-92a6-a3af4587bbea}
}

H. Andréka; I. Németi. Generalization of the concept of variety and quasivariety to partial algebras through category theory. GDML_Books (1983),  http://gdmltest.u-ga.fr/item/bwmeta1.element.zamlynska-501e312d-2b1c-4691-92a6-a3af4587bbea/