@techreport{HillerKlugTuchscherer2009, author = {Benjamin Hiller and Torsten Klug and Andreas Tuchscherer}, title = {Improving the performance of elevator systems using exact reoptimization algorithms}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {09-05}, language = {eng}, year = {2009} }