@article{RRACEFN_1989_1989_1_a10,
     author = {D{\'\i}az, J. I.},
     title = {Problemas est\'aticos con frontera libre en mec\'anica de medios continuos.},
     journal = {Revista de la Real Academia de Ciencias Exactas, F{\'\i}sicas y Naturales },
     pages = {119-122},
     publisher = {mathdoc},
     volume = {83},
     number = {1},
     year = {1989},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/RRACEFN_1989_1989_1_a10/}
}