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@article{MZ_1974__138_172077, author = {Eugene C. Johnsen and Thomas Storer}, title = {Combinatorial {Structures} in {Loops.}}, journal = {Mathematische Zeitschrift}, pages = {1--14}, publisher = {mathdoc}, volume = {138}, year = {1974}, zbl = {0276.05019}, url = {http://geodesic.mathdoc.fr/item/MZ_1974__138_172077/} }
Eugene C. Johnsen; Thomas Storer. Combinatorial Structures in Loops.. Mathematische Zeitschrift, Tome 138 (1974), pp. 1-14. http://geodesic.mathdoc.fr/item/MZ_1974__138_172077/