Shalenov Е., Dzhumagulova К., Tashkenbayev Е., E. Seitkozhanov, and Jumagulov М. “About the Interaction of Positrons With Hydrogen and Helium Atoms”. Recent Contributions to Physics, vol. 2025, no. 1, Mar. 2025, pp. 76-83, doi:10.26577/RCPh20259218.