TY  - JOUR
A1  - Delgrande, James Patrick
A1  - Schaub, Torsten H.
A1  - Tompits, Hans
T1  - An Extended Query language for action languages (and its application to aggregates and preferences)
Y1  - 2006
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/12329
UR  - http://www2.in.tu-clausthal.de/~tmbehrens/NMR_Proc_TR4.pdf
ER  -