@article{MOMA_1972__76_177599,
     author = {Johann Linhart},
     title = {Beitr\"age zur {Fixpunkttheorie} nichtexpandierender {Operatoren.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {239--249},
     publisher = {mathdoc},
     volume = {76},
     year = {1972},
     zbl = {0239.47038},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1972__76_177599/}
}