Alberto Del Lungo, Massimo Mirolli, Renzo Pinzani, Simone Rinaldi. A Bijection for Directed-Convex Polyominoes. In Robert Cori, Jacques Mazoyer, Michel Morvan, Rémy Mosseri, editors, Discrete Models: Combinatorics, Computation, and Geometry, DM-CCG 2001. Volume AA of Discrete Mathematics and Theoretical Computer Science Proceedings, pages 133-144, 2001. [doi]
Abstract is missing.