@techreport{AscheuerGroetschelKrumkeetal.1998, author = {Norbert Ascheuer and Martin Gr{\"o}tschel and Sven Krumke and J{\"o}rg Rambau}, title = {Combinatorial Online Optimization}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {SC-98-24}, language = {eng}, year = {1998} }