TY - JOUR AU - John Burgess AU - Richard Lockhart TI - Classical hierarchies form a modern standpoint. Part III. BP-sets JO - Fundamenta Mathematicae PY - 1983 SP - 107 EP - 118 VL - 115 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-115-2-107-118/ DO - 10.4064/fm-115-2-107-118 LA - en ID - 10_4064_fm_115_2_107_118 ER -