@article{RRACEFN_1988_1988_1_a23,
     author = {Bujalance, E. and  Costa, A. F.},
     title = {Una caracterizaci\'on topol\'ogica de las involuciones en superficies de {Klein.}},
     journal = {Revista de la Real Academia de Ciencias Exactas, F{\'\i}sicas y Naturales},
     pages = {261-266},
     year = {1988},
     volume = {82},
     number = {2},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/RRACEFN_1988_1988_1_a23/}
}