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@article{JIS_2009__12_8_a3, author = {Bibak, Kh. and Shirdareh Haghighi, M.H.}, title = {Some trigonometric identities involving {Fibonacci} and {Lucas} numbers}, journal = {Journal of integer sequences}, publisher = {mathdoc}, volume = {12}, number = {8}, year = {2009}, language = {en}, url = {http://geodesic.mathdoc.fr/item/JIS_2009__12_8_a3/} }
Bibak, Kh.; Shirdareh Haghighi, M.H. Some trigonometric identities involving Fibonacci and Lucas numbers. Journal of integer sequences, Tome 12 (2009) no. 8. http://geodesic.mathdoc.fr/item/JIS_2009__12_8_a3/