Luca Ferrari Elisabetta Grazzini Elisa Pergola Simone Rinaldi Some bijective results about the area of Schröder paths. 327-335 2003 307 Theor. Comput. Sci. 2 http://dx.doi.org/10.1016/S0304-3975(03)00223-8 db/journals/tcs/tcs307.html#FerrariGPR03