@article{TSG_1987-1988__6__91_0,
     author = {Truc, Fran\c{c}oise},
     title = {Probl\`emes variationnels non convexes en dualit\'e {(\'Equation} des coques ; syst\`emes gyroscopiques)},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     pages = {91--107},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {6},
     year = {1987-1988},
     mrnumber = {1046261},
     zbl = {0900.49027},
     language = {fr},
     url = {http://archive.numdam.org/item/TSG_1987-1988__6__91_0/}
}