@article{bwmeta1.element.bwnjournal-article-pmfv21i1p6bwm,
author = {E. Stamm},
title = {Zur Theorie der Beziehungen Operationen.},
journal = {Prace Matematyczno-Fizyczne},
volume = {21},
year = {1910},
pages = {42-54},
zbl = {41.0089.01},
language = {deu},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-pmfv21i1p6bwm}
}
Stamm, E. Zur Theorie der Beziehungen Operationen.. Prace Matematyczno-Fizyczne, Tome 21 (1910) pp. 42-54. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-pmfv21i1p6bwm/