Synthesis and chemical reactivity of semicarbazide-supported silicas - Blanchet, Carl; Joly, Pascal; Granier, Michel; Lanneau, Gérard F.; Cretin, Marc; Persin, Michel; Melnyk, Oleg; Durand, Jean-Olivier (Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry, 2003)