TY - JOUR AU - William Powell TI - Variations of Keisler's theorem for complete embeddings JO - Fundamenta Mathematicae PY - 1973 SP - 121 EP - 132 VL - 81 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-81-2-121-132/ DO - 10.4064/fm-81-2-121-132 LA - en ID - 10_4064_fm_81_2_121_132 ER -