@article{10_21136_CMJ_1968_100842,
     author = {L\"owig, Henry Francis Joseph},
     title = {On the definition of an absolutely free algebra},
     journal = {Czechoslovak Mathematical Journal},
     pages = {396--399},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {1968},
     doi = {10.21136/CMJ.1968.100842},
     mrnumber = {0232727},
     zbl = {0162.32501},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1968.100842/}
}