@article{01598720,
title = {On the Freyd categories of an additive category.},
journal = {Homology, Homotopy and Applications},
volume = {2},
year = {2000},
pages = {147-185},
zbl = {1066.18008},
language = {en},
url = {http://dml.mathdoc.fr/item/01598720}
}
Beligiannis, Apostolos. On the Freyd categories of an additive category.. Homology, Homotopy and Applications, Tome 2 (2000) pp. 147-185. http://gdmltest.u-ga.fr/item/01598720/