Petrina, D. Y., & Петрина, Д. Я. (2003). Model BCS Hamiltonian and Approximating Hamiltonian in the Case of Infinite Volume. IV. Two Branches of Their Common Spectra and States. Institute of Mathematics, NAS of Ukraine.
Chicago Style (17th ed.) CitationPetrina, D. Ya., and Д. Я Петрина. Model BCS Hamiltonian and Approximating Hamiltonian in the Case of Infinite Volume. IV. Two Branches of Their Common Spectra and States. Institute of Mathematics, NAS of Ukraine, 2003.
MLA (8th ed.) CitationPetrina, D. Ya., and Д. Я Петрина. Model BCS Hamiltonian and Approximating Hamiltonian in the Case of Infinite Volume. IV. Two Branches of Their Common Spectra and States. Institute of Mathematics, NAS of Ukraine, 2003.
Warning: These citations may not always be 100% accurate.