@article{GDZPPN002257637,
title = {Zur Theorie der Functionenclasse s3 = (z?a1) (z?a2) (z?a$^\circ$)},
journal = {Mathematische Annalen},
volume = {51},
year = {1899},
pages = {440-448},
zbl = {30.0409.02},
url = {http://dml.mathdoc.fr/item/GDZPPN002257637}
}
Wellstein, J. Zur Theorie der Functionenclasse s3 = (z?a1) (z?a2) (z?a°). Mathematische Annalen, Tome 51 (1899) pp. 440-448. http://gdmltest.u-ga.fr/item/GDZPPN002257637/