@article{GDZPPN002290510,
title = {Homomorphiebasen von Graphenmengen.},
journal = {Mathematische Annalen},
volume = {146},
year = {1962},
pages = {126-142},
language = {de},
url = {http://dml.mathdoc.fr/item/GDZPPN002290510}
}
Wagner, K.; HALIN, R. Homomorphiebasen von Graphenmengen.. Mathematische Annalen, Tome 146 (1962) pp. 126-142. http://gdmltest.u-ga.fr/item/GDZPPN002290510/