@article{10_4064_cm_4_2_224_226,
     author = {A. Zi\k{e}ba},
     title = {An elementary proof of von {Neumann's} minimax theorem},
     journal = {Colloquium Mathematicum},
     pages = {224--226},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1956},
     doi = {10.4064/cm-4-2-224-226},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-4-2-224-226/}
}