@inproceedings{otqd-wscd09,
 author = {Sydow,, Marcin and Bonchi,, Francesco and Castillo,, Carlos and Donato,, Debora},
 title = {Optimising topical query decomposition},
 booktitle = {WSCD '09: Proceedings of the 2009 workshop on Web Search Click Data},
 year = {2009},
 isbn = {978-1-60558-434-8},
 pages = {43--47},
 location = {Barcelona, Spain},
 doi = {http://doi.acm.org/10.1145/1507509.1507516},
 publisher = {ACM},
 address = {New York, NY, USA},
 }