A. S. MAGULA. Spatial System of Quantum Numbers of Electrons and Nucleons. Search for the Fundamental Reason for the Periodicity of Elements and Isotopes. Research Trends and Challenges in Physical Science Vol. 4, [S. l.], p. 77–118, 2021. DOI: 10.9734/bpi/rtcps/v4/13304D. Disponível em: https://stm.bookpi.org/RTCPS-V4/article/view/4556. Acesso em: 4 jun. 2026.