@article{RRACEFN_1986_1986_1_a20,
     author = {Izquierdo Sebasti\'an, Joaqu{\'\i}n},
     title = {Sobre ciertas clases de espacios semiconvexos.},
     journal = {Revista de la Real Academia de Ciencias Exactas, F{\'\i}sicas y Naturales },
     pages = {549-562},
     publisher = {mathdoc},
     volume = {80},
     number = {4},
     year = {1986},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/RRACEFN_1986_1986_1_a20/}
}