TY - JOUR AU - C. Yates TI - Prioric games and minimal degrees below $0^{(1)}$ JO - Fundamenta Mathematicae PY - 1974 SP - 217 EP - 237 VL - 82 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-82-3-217-237/ DO - 10.4064/fm-82-3-217-237 LA - en ID - 10_4064_fm_82_3_217_237 ER -