WRITING-TABLETS FROM ANTIQUITY TO THE MODERN ERA - PROCEEDINGS OF THE INTERNATIONAL COLLOQUIUM OF THE CNRS, PARIS, INSTITUT-DE-FRANCE, OCTOBER 10-11, 1990, ORGANIZED BY THE INSTITUT-DE-RECHERCHE-ET-DHISTOIRE-DES-TEXTES AND BY THE INSTITUT-DE-PAPYROLOGIE OF THE SORBONNE (FRENCH)