TY - JOUR AU - Darsow, William F. TI - Signal Metrics JO - Canadian journal of mathematics PY - 1967 SP - 28 EP - 39 VL - 19 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-004-9/ DO - 10.4153/CJM-1967-004-9 ID - 10_4153_CJM_1967_004_9 ER -