APA-Zitierstil (7. Ausg.)

Maksimov, V. (2001). an extremal problem in a hilbert space: An extremal problem in a Hilbert space. Differential Equations, 37(1), 141-143. https://doi.org/10.1023/a:1019288803057

Chicago-Zitierstil (17. Ausg.)

Maksimov, Vyacheslav. "An Extremal Problem in a Hilbert Space: An Extremal Problem in a Hilbert Space." Differential Equations 37, no. 1 (2001): 141-143. https://doi.org/10.1023/a:1019288803057.

MLA-Zitierstil (9. Ausg.)

Maksimov, Vyacheslav. "An Extremal Problem in a Hilbert Space: An Extremal Problem in a Hilbert Space." Differential Equations, vol. 37, no. 1, 2001, pp. 141-143, https://doi.org/10.1023/a:1019288803057.