@article{BAG_1971__1_138072,
     author = {H.H. BUCHSTEINER},
     title = {Zentren und {Nuclei} von {n-Loops}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {85--106},
     publisher = {mathdoc},
     volume = {1},
     year = {1971},
     url = {http://geodesic.mathdoc.fr/item/BAG_1971__1_138072/}
}