TY - JOUR AU - P.J. SCHELLENBERG TI - On Balanced Room Squares and Complete Balanced Howell Rotations JO - Aequationes mathematicae PY - 1973 SP - 75 EP - 90 VL - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AM2_1973__9_136327/ ID - AM2_1973__9_136327 ER -