@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/}
}