TY  - JOUR
A1  - Schaub, Torsten H.
A1  - Brüning, Stefan
A1  - Nicolas, Pascal
T1  - XRay : a prolog technology theorem prover for default reasoning: a system description
Y1  - 1996
SN  - 3-540-61511-3
ER  - 
TY  - JOUR
A1  - Schaub, Torsten H.
A1  - Nicolas, Pascal
T1  - An implementation platform for query-answering in default logics : theoretical underpinnings
Y1  - 1997
SN  - 3-540-63614-5
ER  - 
TY  - JOUR
A1  - Schaub, Torsten H.
A1  - Nicolas, Pascal
T1  - An implementation platform for query-answering in default logics : the XRay system, its implementation and evaluation
Y1  - 1997
SN  - 3-540-63255-7
ER  - 
TY  - JOUR
A1  - Benhammadi, Farid
A1  - Nicolas, Pascal
A1  - Schaub, Torsten H.
T1  - Extension calculus and query answering in prioritized default logic
Y1  - 1998
SN  - 3-540-64993-X
ER  - 
TY  - JOUR
A1  - Benhammadi, Farid
A1  - Nicolas, Pascal
A1  - Schaub, Torsten H.
T1  - Extension calculus and query answering in prioritized default logic
Y1  - 1998
SN  - 3-540- 64993-X
ER  - 
TY  - JOUR
A1  - Nicolas, Pascal
A1  - Schaub, Torsten H.
T1  - Un cadre général pour l'interrogation automatique en logiques des défauts
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Nicolas, Pascal
A1  - Schaub, Torsten H.
T1  - The XRay system : an implementation platform for local query-answering in default logics
Y1  - 1998
SN  - 3-540-65312-0
ER  - 
TY  - JOUR
A1  - Benhammadi, Farid
A1  - Nicolas, Pascal
A1  - Schaub, Torsten H.
T1  - Query-answering in prioritized default logic
Y1  - 1999
SN  - 3-540-66131-X
ER  - 
TY  - JOUR
A1  - Benhammadi, Farid
A1  - Nicolas, Pascal
A1  - Schaub, Torsten H.
T1  - Query-answering in prioritized default logic
Y1  - 1999
SN  - 3-540-66131-X
ER  -