@article{CM_1971__23_3_357_0,
     author = {Bertin, E. M. J.},
     title = {Limites projectives et approximation. {Th\'eorie} \'el\'ementaire},
     journal = {Compositio Mathematica},
     pages = {357--378},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {23},
     number = {3},
     year = {1971},
     mrnumber = {297670},
     zbl = {0224.18006},
     language = {fr},
     url = {http://www.numdam.org/item/CM_1971__23_3_357_0/}
}