@article{SG_1957__1__A1_0,
     author = {Andreotti, A.},
     title = {G\'en\'eralit\'es sur les cat\'egories ab\'eliennes},
     journal = {S\'eminaire A. Grothendieck},
     note = {talk:1},
     pages = {1--12},
     publisher = {Secr\'etariat math\'ematique},
     volume = {1},
     year = {1957},
     language = {fr},
     url = {http://archive.numdam.org/item/SG_1957__1__A1_0/}
}