@inproceedings{GaspersOrdyniakRamanujanSaurabhSzeider13,
 author = {Serge Gaspers and Sebastian Ordyniak and
M. S. Ramanujan and Saket Saurabh and Stefan
Szeider},
 booktitle = {30th International Symposium on Theoretical Aspects
of Computer Science, STACS 2013, February 27 - March
2, 2013, Kiel, Germany},
 doi = {10.4230/LIPIcs.STACS.2013.67},
 editor = {Natacha Portier and Thomas Wilke},
 pages = {67-79},
 publisher = {Leibniz-Zentrum fuer Informatik},
 series = {LIPIcs},
 title = {Backdoors to q-{Horn}},
 volume = {20},
 year = {2013}
}