@article{BAG_1990__30_138454,
     author = {K. Corr\'adi and S. Szab\'o},
     title = {On the algebraic form of {Keller's} conjecture},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {17--34},
     publisher = {mathdoc},
     volume = {30},
     year = {1990},
     zbl = {0738.20030},
     url = {http://geodesic.mathdoc.fr/item/BAG_1990__30_138454/}
}