| Author | Titles | 1.
| Xavier, João Pedro, 1961- | 3 | 2.
| Xavier, Jorge Barreto, 1965- | 17 | 3.
| Xavier, Jorge Manuel Barreto, 1965- | 0 | 4.
| Author is: Xavier, Jorge Barreto, 1965- | 17 | 5.
| Xavier, José | 2 | 6.
| Xavier, Leonor | 1 | 7.
| Xavier, Lívio | 1 | 8.
| Xavier, Luís Lobo | 4 | 9.
| Xavier, Maria Leonor Lamas de Oliveira | 1 | 10.
| Xavier, Maria Manuela | 1 | 11.
| Xavier, Natércia | 2 |
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