@techreport{chwatal-08a,
 address = {Vienna, Austria},
 author = {Andreas M. Chwatal and Günther R. Raidl and Karin Oberlechner},
 institution = {Vienna University of Technology, Institute of Computer Graphics and Algorithms},
 month = {September},
 number = {TR 186--1--08--01},
 title = {Solving an Extended Minimum Label Spanning Tree Problem to Compress Fingerprint Templates},
 url = {https://www.ac.tuwien.ac.at/files/pub/chwatal-08a.pdf},
 year = {2008}
}