Hello, I apologize about the subject of this message. I should wish to reach O.reilly editor to receive some books in electronic form. I had a name but it would seem that it is not good Thanks you in advance Jean Frontin System team I R I T Université Paul-Sabatier 118, rte de Narbonne 31062 Toulouse cedex 04 France tel (33)(0)5 61 55 63 03 mail frontin at irit.fr