@article{MAN_1935__111_159810,
     author = {A. Tychonoff},
     title = {Ein {Fixpunktsatz}},
     journal = {Mathematische Annalen},
     pages = {767--776},
     publisher = {mathdoc},
     volume = {111},
     year = {1935},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1935__111_159810/}
}