%0 Conference Article %T Spectrum of positrons produced due to interaction of gamma-ray background photons with soft background photons %A Popov, A.. %A Barsukov, D.. %A Ivanchik, A.. %A Bobashev, S.. %K cosmology: cosmic background radiation; positrons %J Modern astronomy: from the Early Universe to exoplanets and black holes %D 2024 %P 3 %I Special Astrophysical Observatory of the Russian Academy of Sciences