“The energy spectrum and thermodynamics of the finite spin-1/2 XX chain with Ising-type Impurities” (2016) Journal of V. N. Karazin Kharkiv National University. Series Physics, (23), pp. 75–79. Available at: https://periodicals.karazin.ua/physics/article/view/7780 (Accessed: 24 October 2026).