@inproceedings{DBLP:conf/icdt/PicalausaFHV14,
	author          = {Fran{\c{c}}ois Picalausa and               George H. L. Fletcher and               Jan Hidders and               Stijn Vansummeren},
	title           = {Principles of Guarded Structural Indexing},
	booktitle       = {Proc. 17th International Conference on Database Theory (ICDT), Athens,               Greece, March 24-28, 2014.},
	year            = {2014},
	pages           = {245--256},
	url             = {http://dx.doi.org/10.5441/002/icdt.2014.26},
	group           = {WIS}
}