@inproceedings{TEMP:conf/nmr/DelgrandeST06, title = {An Extended Query Language for Action Languages (and its Application to Aggregates and Preferences)}, author = {Delgrande, J. and Schaub, T. and Tompits, H.}, booktitle = {{NMR}}, number = {IFI-06-04}, pages = {362--370}, series = {Technical Report Series}, year = {2006} }