Kashirina, N. I. “Application of Quantum Field Theory Methods to the Development of the Translational-Invariant Polaron and Bipolaron Theory”. Ukrainian Journal of Physics 59, no. 11 (October 28, 2018): 1088. Accessed November 22, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018551.