Are homeobox Knotted-like genes and cytokinins the leaf architects? - Frugis,G..; Gianno,D..; Mele,G..; Nicolodi,C..; Innocenti,A..M..; Chiappetta,A..; Bitonti,M..B..; Dewitte,W..; van Onckolen,H..; Mariotti,D.. (Plant Phys., 1999)