@article{GAMA_1966__18_1-2_43371,
     author = {Antonio Valle S\'anchez},
     title = {Problemas de contorno en ecuaciones de evoluci\'on.},
     journal = {Gaceta Matem\'atica},
     pages = {18},
     publisher = {mathdoc},
     volume = {18},
     number = {1-2},
     year = {1966},
     language = {sp},
     url = {https://geodesic-test.mathdoc.fr/item/GAMA_1966__18_1-2_43371/}
}