@article{GRSME_2007_2007_1_a1,
     author = {Ayala G\'omez, R. and  ern\'andez Ternero, D. and  Vilches Alarc\'on, J. A.},
     title = {El teorema del punto fijo sin homolog{\'\i}a: un enfoque combinatorio.},
     journal = {La Gaceta de la Real Sociedad Matem\'atica Espa\~nola},
     pages = {53-70},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {2007},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GRSME_2007_2007_1_a1/}
}