00532nam172200193 4500 2000072000002100026000722150023000982250026001213450018001471010018001651020007001831050018001908010033002087000021002417020039002626060018003016760011003196870008003301 aMessages secretsfMarie Bertheratgill. de Frédéric PillotbLIV aToulousecMiland1996 a39 p.cill.d19 cm aCarnets de naturev19 b9782841133246 afrecfregfre aFR aa zz 00|z| 2aFRbDECc19980306f42448dBB 1aBertheratbMarie 1aPillotbFrédéric4Illustrateur aCryptographie a793.7 aJDO