@article{10_4064_ap_23_2_105_107,
     author = {Jochen Reinermann},
     title = {On a fixed-point theorem of {Banach} type},
     journal = {Annales Polonici Mathematici},
     pages = {105--107},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {1970},
     doi = {10.4064/ap-23-2-105-107},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-23-2-105-107/}
}