@article{GAMA_1966_1966_1_a1,
     author = {Valle S\'anchez, Antonio},
     title = {Problemas de contorno en ecuaciones de evoluci\'on.},
     journal = {Gaceta matem\'atica},
     pages = {18-27},
     publisher = {mathdoc},
     volume = {18},
     number = {1-2},
     year = {1966},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GAMA_1966_1966_1_a1/}
}