@techreport{BorndoerferHoangKarbsteinetal.2013, author = {Ralf Bornd{\"o}rfer and Nam-Dung Hoang and Marika Karbstein and Thorsten Koch and Alexander Martin}, title = {How Many Steiner Terminals Can You Connect in 20 Years?}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {13-57}, language = {eng}, year = {2013} }