@article{HHA_2000_2_1_a11,
     author = {Apostolos Beligiannis},
     title = {On the {Freyd} categories of an additive category},
     journal = {Homology, homotopy, and applications},
     pages = {147--185},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {2000},
     doi = {10.4310/HHA.2000.v2.n1.a11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2000.v2.n1.a11/}
}