TY - JOUR AU - Rider, Daniel TI - Central Idempotent Measures on Unitary Groups JO - Canadian journal of mathematics PY - 1970 SP - 719 EP - 725 VL - 22 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-082-5/ DO - 10.4153/CJM-1970-082-5 ID - 10_4153_CJM_1970_082_5 ER -