JUAN GRIS À BOULOGNE: Emmanuel Bréon. Herscher, Paris, 1992

2 books on Marc Chagall - Marc Chagall, le peintre-poète & The Russian Years 1907-1921

2 books on Pablo Picasso. PABLO PICASSO - A Modern Master : Richard Leslie. Tiger Books international London (English). DE WERELD VAN PICASSO (Dutch)

LES CADRANS SOLAIRES DE MAX ELSKAMP : Henri Michel. Published by the Musée Wallon, Liège, 1966.

LIMOGES ENAMELS 12th - 19th CENTURY : Jacques Toussaint. Société Archéologique de Namur, 1996

THE FIGURES OF FREEDOM. Musée Rath, Geneva, 1995

THE MAKING OF THOUGHT: Pietro Corsi. Electa, 1990

ANCIENT CIVIL SILVERWARE FROM THE CORK REGION. Museum of Walloon Art, Liège, 1991

THE HEVER CASTLE COLLECTION - Works of art. Sotheby Parke Bernet, 1983

COLLECTION DE LA BARONNE GÉRARD. Paris, Ader Picard Tajan, 1989