@article{AFST_1998_6_7_4_699_0,
     author = {S\'echer, Philippe},
     title = {\'Etude spectrale du syst\`eme diff\'erentiel $2 x 2$ associ\'e \`a un probl\`eme d{\textquoteright}\'elasticit\'e lin\'eaire},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {699--726},
     publisher = {Universit\'e Paul Sabatier. Facult\'e des sciences},
     address = {Toulouse},
     volume = {6e s{\'e}rie, 7},
     number = {4},
     year = {1998},
     mrnumber = {1693652},
     zbl = {0931.35114},
     language = {fr},
     url = {http://archive.numdam.org/item/AFST_1998_6_7_4_699_0/}
}