@book{
183-023995041,
title = {Graphentheorie: Grundlagen und Anwendungen},
author = {Perl, Jürgen},
address = {Wiesbaden},
publisher = {Akad. Verl.-Ges.},
year = {1981},
isbn = {3400003727},
language = {German},
note = {Literaturverz. S. 212 - 214},
url = {http://www.gbv.de/dms/ilmenau/toc/023995041.PDF},
url = {https://katalog.fid-bbi.de/Record/183-023995041}
}