@article{GDZPPN002027984, title = {Construction of Skew Room Squares.}, journal = {Aequationes mathematicae}, volume = {10}, year = {1974}, pages = {111-113}, zbl = {0373.05027}, url = {http://dml.mathdoc.fr/item/GDZPPN002027984} }
Wallis, W.D. Construction of Skew Room Squares.. Aequationes mathematicae, Tome 10 (1974) pp. 111-113. http://gdmltest.u-ga.fr/item/GDZPPN002027984/