TY - JOUR AU - Viola-Prioli, Jorge E. TI - When is Every Kernel Functor Idempotent? JO - Canadian journal of mathematics PY - 1975 SP - 545 EP - 554 VL - 27 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-065-1/ DO - 10.4153/CJM-1975-065-1 ID - 10_4153_CJM_1975_065_1 ER -