@article{PM_1992_1992_1_a55,
     author = {Mathieu, Martin},
     title = {C\'omo resolver una ecuaci\'on de operadores.},
     journal = {Publicacions matem\`atiques},
     pages = {743-760},
     publisher = {mathdoc},
     volume = {36},
     number = {2B},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_1992_1992_1_a55/}
}