@article{05791582, title = {Symmetric three-term recurrence equations and their symplectic structure.}, journal = {Advances in Difference Equations [electronic only]}, volume = {2010}, year = {2010}, doi = {10.1155/2010/626942}, zbl = {1198.39002}, language = {en}, url = {http://dml.mathdoc.fr/item/05791582} }
Šimon Hilscher, Roman; Zeidan, Vera. Symmetric three-term recurrence equations and their symplectic structure.. Advances in Difference Equations [electronic only], Tome 2010 (2010) . doi : 10.1155/2010/626942. http://gdmltest.u-ga.fr/item/05791582/