2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS), Tel Aviv, Israel. IEEE: 216-218; ISBN 978-1-6654-1147-9
Competence Initiative for the Protection of Humanity, Environment and Democracy e.V.,
Schriftreihe Wirkungen des Mobil- und Kommunikationsfunks, Heft 12: 1-120, ISBN 978-3-9820686-0-2