@article{AUPO_1999__38_1_a6,
     author = {Chajda, Ivan and Graczy\'nska, Ewa},
     title = {Algebras presented by normal identities},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {49--58},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1999},
     mrnumber = {1767191},
     zbl = {0993.08002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1999__38_1_a6/}
}