@mastersthesis{volko-13,
 author = {Claus-Dieter Volko},
 month = {April},
 note = {supervised by G.~Raidl and B.~Hu},
 school = {Vienna University of Technology, Institute of Computer Graphics and Algorithms},
 title = {Selective Graph Coloring Problem},
 url = {https://www.ac.tuwien.ac.at/files/pub/volko-13.pdf},
 year = {2013}
}