1.
Petrina DY. Spectrum and States of the BCS Hamiltonian in a Finite Domain. II. Spectra of Excitations. Ukr. Mat. Zhurn. [Internet]. 2001 Aug. 25 [cited 2025 Dec. 6];53(8):1080-10. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4328