@article{AM2_1974__11_136440, author = {W.D. Wallis}, title = {Construction of {Skew} {Room} {Squares.}}, journal = {Aequationes mathematicae}, pages = {111--113}, publisher = {mathdoc}, volume = {11}, year = {1974}, zbl = {0373.05027}, url = {http://geodesic.mathdoc.fr/item/AM2_1974__11_136440/} }