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@article{PORMA_1995__52_4_47498, author = {Udrea, Gheorghe}, title = {Catalan's identity and {Chebyshev} polynomials of the second kind.}, journal = {Portugaliae mathematica}, pages = {391--397}, publisher = {mathdoc}, volume = {52}, number = {4}, year = {1995}, zbl = {0846.11014}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1995__52_4_47498/} }
Udrea, Gheorghe. Catalan's identity and Chebyshev polynomials of the second kind.. Portugaliae mathematica, Tome 52 (1995) no. 4, pp. 391-397. http://geodesic.mathdoc.fr/item/PORMA_1995__52_4_47498/