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@article{MT_1989_12_a1, author = {S. S. Goncharov}, title = {Characterization of axiomatizable classes with strong epimorphisms}, journal = {Matemati\v{c}eskie trudy}, pages = {24--39}, publisher = {mathdoc}, volume = {12}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MT_1989_12_a1/} }
S. S. Goncharov. Characterization of axiomatizable classes with strong epimorphisms. Matematičeskie trudy, Tome 12 (1989), pp. 24-39. http://geodesic.mathdoc.fr/item/MT_1989_12_a1/