@article{10_4064_fm228_1_7,
     author = {Wolfgang Rump},
     title = {Stable short exact sequences and the
 maximal exact structure of an additive category},
     journal = {Fundamenta Mathematicae},
     pages = {87--96},
     publisher = {mathdoc},
     volume = {228},
     number = {1},
     year = {2015},
     doi = {10.4064/fm228-1-7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm228-1-7/}
}