Citations of

(with Nelson Y. Li and Louis W. Shapiro) The Butterfly Decomposition of Plane Trees,, Discrete Appl. Math., 155 (17) (2007) 2187–2201.

  1. N.S.S. Gu, H. Prodinger and S. Wagner, Bijections for a class of labeled plane trees, European J. Combin. 31(3) (2010) 720–732.

  2. T. Mansour and Y.D. Sun, Identities involving Narayana polynomials and Catalan numbers, Discrete Mathematics 309(12) (2009) 4079-4088.

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