@techreport{riedler15,
 author = {Markus Leitner and Ivana Ljubić and Martin Riedler and Mario Ruthmair},
 institution = {Algorithms and Complexity Group, TU Wien},
 keywords = {ndpr, mip},
 number = {AC-TR-15-003},
 title = {Exact Approaches for Network Design Problems with Relays},
 url = {http://www.ac.tuwien.ac.at/files/tr/ac-tr-15-003.pdf},
 year = {2015}
}