Photo 1 : Charles JANSSENS during a session in Strasbourg, France, May 09, 1962.
Photo 2 : Giorgio BRACCESI during a session in Strasbourg, France, May 09, 1962.
Photo 3 : Mario PEDINI during a session in Strasbourg, France, May 09, 1962.
Photo 4 : Paul J KAPTEYN during a session in Strasbourg, France, May 09, 1962.