@article{SJL_1973-1977___1_A3_0,
     author = {Robert, Jacques},
     title = {Probl\`emes variationnels fortement non lin\'eaires},
     journal = {S\'eminaire Jean Leray},
     note = {talk:3},
     pages = {1--9},
     publisher = {Coll\`ege de France},
     number = {1},
     year = {1973-1977},
     language = {fr},
     url = {http://www.numdam.org/item/SJL_1973-1977___1_A3_0/}
}