@article{GRSME_2007_2007_1_a30,
     author = {Ojeda Mart{\'\i}nez de Castilla, Ignacio and  Piedra S\'anchez, Ram\'on},
     title = {Pilar {Pis\'on} {Casares,} in memoriam.},
     journal = {La Gaceta de la Real Sociedad Matem\'atica Espa\~nola},
     pages = {637-643},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {2007},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GRSME_2007_2007_1_a30/}
}