@techreport{DjurdjevacConradBanischSchuette2014, author = {Natasa Djurdjevac Conrad and Ralf Banisch and Christof Sch{\"u}tte}, title = {Modularity of Directed Networks: Cycle Decomposition Approach}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {14-31}, language = {eng}, year = {2014} }