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@article{AM2_1972__8_136284, author = {P.J. Schellenberg}, title = {On {Balanced} {Room} {Squares} and {Complete} {Balanced} {Howell} {Rotations.} {(Short} {Communications).}}, journal = {Aequationes mathematicae}, pages = {196--197}, publisher = {mathdoc}, volume = {8}, year = {1972}, url = {http://geodesic.mathdoc.fr/item/AM2_1972__8_136284/} }
P.J. Schellenberg. On Balanced Room Squares and Complete Balanced Howell Rotations. (Short Communications).. Aequationes mathematicae, Tome 8 (1972), pp. 196-197. http://geodesic.mathdoc.fr/item/AM2_1972__8_136284/