@techreport{,
TITLE = {Ninth Biennial Report : April 2007 -- April 2009},
EDITOR = {{MPI for Informatics, Max Planck Society}},
LANGUAGE = {eng},
INSTITUTION = {Max-Planck-Institut f{\"u}r Informatik},
ADDRESS = {Saarbr{\"u}cken},
YEAR = {2009},
DATE = {2009},
TYPE = {Biennial Report / Max-Planck-Institut für Informatik},
VOLUME = {9},
}