@article{EXMATH_1993_1993_1_a2,
     author = {Werner, Dirk},
     title = {Una demostraci\'on del teorema del punto fijo de {Markov-Kakutani} a trav\'es del teorema de {Hahn-Banach.}},
     journal = {Extracta mathematicae},
     pages = {37-38},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1993_1993_1_a2/}
}