Sousa, JSVilela, JP2018-11-082018-11-082018-11-08201810.1109/TIFS.2017.2737963https://infoscience.epfl.ch/handle/20.500.14299/151181WOS:000417725500011Uncoordinated Frequency Hopping for Wireless Secrecy Against Non-Degraded Eavesdropperstext::journal::journal article::research article