Diakos, Thomas P.; Briffa, Johann A.; Brown, Tim W. C.; Wesemeyer, Stephan: 'Eavesdropping near-field contactless payments: a quantitative analysis', The Journal of Engineering, 2013, 2013, (10), p. 48-54, DOI: 10.1049/joe.2013.0087
IET Digital Library, https://digital-library.theiet.org/;jsessionid=48a65904odicm.x-iet-live-01content/journals/10.1049/joe.2013.0087