Recomputation-Free Lemmatization by Program Transformation. - Paulo Jorge de Sousa Azevedo; Marek J. Sergot (ICLP, 1994)

An Extended Magic Sets Strategy for a Rule Language with Updates and Transactions. - Paulo Jorge de Sousa Azevedo; Danilo Montesi (Deductive Databases / Abduction in Deductive Databases, 1995)

Magic Sets with Full Sharing. - Paulo Jorge de Sousa Azevedo (J. Log. Program., 1997)