@article{MAN_1968__179_161780,
     author = {R. KERKHOFF},
     title = {\"Uber verallgemeinerte {Peano-Algebren.}},
     journal = {Mathematische Annalen},
     pages = {251--256},
     publisher = {mathdoc},
     volume = {179},
     year = {1968},
     url = {http://geodesic.mathdoc.fr/item/MAN_1968__179_161780/}
}