TY - JOUR AU - Apostolos Beligiannis TI - On the Freyd categories of an additive category JO - Homology, homotopy, and applications PY - 2000 SP - 147 EP - 185 VL - 2 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4310/HHA.2000.v2.n1.a11/ DO - 10.4310/HHA.2000.v2.n1.a11 LA - en ID - HHA_2000_2_1_a11 ER -