Karpeshina, Y. E., & Karpeshina, Y. E. (1997). Perturbation Theory for the Schrödinger Operator with a Periodic Potential (1st ed. 1997.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/BFb0094264
Chicago Style (17th ed.) CitationKarpeshina, Yulia E., and Yulia E. Karpeshina. Perturbation Theory for the Schrödinger Operator with a Periodic Potential. 1st ed. 1997. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1997. https://doi.org/10.1007/BFb0094264.
MLA (8th ed.) CitationKarpeshina, Yulia E., and Yulia E. Karpeshina. Perturbation Theory for the Schrödinger Operator with a Periodic Potential. 1st ed. 1997. Springer Berlin Heidelberg : Imprint: Springer, 1997. https://doi.org/10.1007/BFb0094264.
Warning: These citations may not always be 100% accurate.