@article{CMUC_1976_17_2_a6,
     author = {Je\v{z}ek, Jaroslav},
     title = {EDZ-varieties: {The} {Schreier} property and epimorphisms onto},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {281--290},
     year = {1976},
     volume = {17},
     number = {2},
     mrnumber = {0409317},
     zbl = {0335.08002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1976_17_2_a6/}
}