@article{GDZPPN002345749, title = {Invariante Schnittsysteme stetiger Transformationen.}, journal = {Mathematica Scandinavica}, volume = {7}, year = {1959}, pages = {33-48}, zbl = {0101.16401}, url = {http://dml.mathdoc.fr/item/GDZPPN002345749} }
Weier, Josef. Invariante Schnittsysteme stetiger Transformationen.. Mathematica Scandinavica, Tome 7 (1959) pp. 33-48. http://gdmltest.u-ga.fr/item/GDZPPN002345749/