TY - JOUR AU - Frazer, Patricia J. AU - Foulis, David J. AU - Randall, Charles H. TI - Weight functions on extensions of the compound manual JO - Glasgow mathematical journal PY - 1980 SP - 97 EP - 101 VL - 21 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500004237/ DO - 10.1017/S0017089500004237 ID - 10_1017_S0017089500004237 ER -