@mastersthesis{n-admm-05,
 author = {Nöllenburg, Martin},
 month = {August},
 school = {Fakultät für Informatik, Universität Karlsruhe (TH)},
 title = {Automated Drawing of Metro Maps},
 url = {https://www.ac.tuwien.ac.at/files/pub/n-admm-05.pdf},
 year = {2005}
}