Electron and positron interactions and their applications: a tribute to Professor Michael BrungerMárcio H. F. Bettega, Stephen J. Buckman, Dragana Marić, Sylwia Ptasinska and Ron D. WhiteEur. Phys. J. D, 79 3 (2025) 16DOI: https://doi.org/10.1140/epjd/s10053-025-00954-7