@article{SF_1985__31_134759,
     author = {B. Wozniakowska},
     title = {Finitely axiomatizable varieties of {BCK-algebras.}},
     journal = {Semigroup forum},
     pages = {361--366},
     publisher = {mathdoc},
     volume = {31},
     year = {1985},
     zbl = {0567.08006},
     url = {http://geodesic.mathdoc.fr/item/SF_1985__31_134759/}
}