@article{M2AN_1970__4_3_71_0,
     author = {Chein, M.},
     title = {Graphes $h$-maximaux},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {71--81},
     publisher = {Dunod},
     address = {Paris},
     volume = {4},
     number = {R3},
     year = {1970},
     mrnumber = {295957},
     zbl = {0224.05103},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/M2AN_1970__4_3_71_0/}
}