TY - JOUR AU - Seth Chaiken AU - Christopher R. H. Hanusa AU - Thomas Zaslavsky TI - A q-queens problem. VI. The bishops' period JO - Ars Mathematica Contemporanea PY - 2019 SP - 549 EP - 561 VL - 16 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.1657.d75/ DO - 10.26493/1855-3974.1657.d75 LA - en ID - 10_26493_1855_3974_1657_d75 ER -