@inproceedings{AscheuerGroetschelKrumkeetal.1999, author = {Norbert Ascheuer and Martin Gr{\"o}tschel and Sven Krumke and J{\"o}rg Rambau}, title = {Combinatorial Online Optimization}, booktitle = {Operations Research Proceedings 1998. Selected Papers of the International Conference on Operations Research Zurich, August 31 - September 3, 1998}, editor = {Peter Kall and Hans-Jakob L{\"u}thi}, pages = {21 -- 37}, year = {1999}, }