@techreport{repORt:2018-048, author = {S. Goderbauer and L. Ermert}, title = {Proportional Apportionment for Connected Coalitions}, institution = {Lehrstuhl f\"{u}r Operations Research, RWTH Aachen University}, year = {2018}, type = {repORt}, number = {2018--048}, month = {Jul}, note = {Published in Operations Research Proceedings 2018} }