El-Hawary, H. (2001). Double ultraspherical solution of eigenvalue problems for partial differential equations. International journal of computer mathematics, 78(2), 289-301. https://doi.org/10.1080/00207160108805111
Chicago-Zitierstil (17. Ausg.)El-Hawary, H.M. "Double Ultraspherical Solution of Eigenvalue Problems for Partial Differential Equations." International Journal of Computer Mathematics 78, no. 2 (2001): 289-301. https://doi.org/10.1080/00207160108805111.
MLA-Zitierstil (9. Ausg.)El-Hawary, H.M. "Double Ultraspherical Solution of Eigenvalue Problems for Partial Differential Equations." International Journal of Computer Mathematics, vol. 78, no. 2, 2001, pp. 289-301, https://doi.org/10.1080/00207160108805111.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.