The height of directed column-convex polyominoes. (La hauteur des polyominos dirigés verticalement convexe.) Barcucci, Elena; del Lungo, Alberto; Pinzani, Renzo; Sprugnoli, Renzo — 1993 Séminaire Lotharingien de Combinatoire [electronic only]
Permutations avoiding an increasing number of length-increasing forbidden subsequences. Barcucci, Elena; Del Lungo, Alberto; Pergola, Elisa; Pinzani, Renzo — 2000 Discrete Mathematics and Theoretical Computer Science. DMTCS [electronic only]