Graph properties for normal logic programs
1993 ◽
Vol 107
(2)
◽
pp. 277-303
◽
Agostino Cortesi
◽
Gilberto Filé
2008 ◽
Vol 55
(3-4)
◽
pp. 389-417
◽
Yann Loyer
◽
Umberto Straccia
Matti Järvisalo
◽
Emilia Oikarinen
Luís Moniz Pereira
◽
Alexandre Miguel Pinto
Luís Moniz Pereira
◽
Alexandre Miguel Pinto
1996 ◽
Vol 28
(3,4)
◽
pp. 223-245
◽