By Paiva V.   Ventura Filipe E.   Santos N.   Novaes Lima T.   Segurado A.   in Reproductive Health Matters

ISSN:0968-8080|11|22|91-100

Elsevier‎(2003)‎

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By Bierman G.M.   de Paiva V.C.V.   in Studia Logica

ISSN:0039-3215|65|3|383-416

Springer Publishing Company ‎(2000)‎

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