@article{MAN_1980__248_163368,
     author = {Chung-Wei Ha},
     title = {Minimax and {Fixed} {Point} {Theorems.}},
     journal = {Mathematische Annalen},
     pages = {73--78},
     publisher = {mathdoc},
     volume = {248},
     year = {1980},
     zbl = {0413.47042},
     url = {http://geodesic.mathdoc.fr/item/MAN_1980__248_163368/}
}