Bühring, W. (2000). Second-order linear differential equations with two irregular singular points of rank three: The characteristic exponent. Journal of computational and applied mathematics, 118(1), . https://doi.org/10.1016/S0377-0427(00)00281-8
Chicago-Zitierstil (17. Ausg.)Bühring, Wolfgang. "Second-order Linear Differential Equations with Two Irregular Singular Points of Rank Three: The Characteristic Exponent." Journal of Computational and Applied Mathematics 118, no. 1 (2000). https://doi.org/10.1016/S0377-0427(00)00281-8.
MLA-Zitierstil (9. Ausg.)Bühring, Wolfgang. "Second-order Linear Differential Equations with Two Irregular Singular Points of Rank Three: The Characteristic Exponent." Journal of Computational and Applied Mathematics, vol. 118, no. 1, 2000, https://doi.org/10.1016/S0377-0427(00)00281-8.