@article{10_4064_fm_57_3_327_350,
     author = {K. Urbanik},
     title = {On a class of universal algebras},
     journal = {Fundamenta Mathematicae},
     pages = {327--350},
     publisher = {mathdoc},
     volume = {57},
     number = {3},
     year = {1965},
     doi = {10.4064/fm-57-3-327-350},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-57-3-327-350/}
}