@article{SM_1980_37_1_a4,
     author = {A. I. Generalov},
     title = {On an axiomatic description of weak purities in the category of modules},
     journal = {Sbornik. Mathematics},
     pages = {71--82},
     year = {1980},
     volume = {37},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1980_37_1_a4/}
}