APA (7th ed.) Citation

Petrina, D. Y., & Петрина, Д. Я. (2008). Spectrum and states of the BCS Hamiltonian with sources. Institute of Mathematics, NAS of Ukraine.

Chicago Style (17th ed.) Citation

Petrina, D. Ya., and Д. Я Петрина. Spectrum and States of the BCS Hamiltonian with Sources. Institute of Mathematics, NAS of Ukraine, 2008.

MLA (8th ed.) Citation

Petrina, D. Ya., and Д. Я Петрина. Spectrum and States of the BCS Hamiltonian with Sources. Institute of Mathematics, NAS of Ukraine, 2008.

Warning: These citations may not always be 100% accurate.