Παραπομπή APA

Behrndt, J., Hassi, S., & Snoo, H. d. (2020). Boundary Value Problems, Weyl Functions, and Differential Operators. Springer International Publishing.

Παραπομπή Chicago Style

Behrndt, Jussi, Seppo Hassi, και Henk de Snoo. Boundary Value Problems, Weyl Functions, and Differential Operators. Springer International Publishing, 2020.

Παραπομπή MLA

Behrndt, Jussi, Seppo Hassi, και Henk de Snoo. Boundary Value Problems, Weyl Functions, and Differential Operators. Springer International Publishing, 2020.

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