Ales Zavrsnik (ed.) Drones and unmanned aeriel systems. Legal and social implications for security and surveillance. Cham, Switzerland, Springer International Publishing AG, 2016. 275 p. ISBN 978-3-319-23759-6. [Könyvismertetés] - Varga Árpád (Iustum - Aequum - Salutare, 2018)