Jeton Memeti: Protocol Design and Implementation for a Fast and Reliable Mobile Bitcoin Payment System (MBPS) with two-way NFC; Universität Zürich, Communication Systems Group, Department of Informatics, Zürich, Switzerland, September 2014, URL: https://files.ifi.uzh.ch/CSG/staff/bocek/extern/theses/MA-Jeton-Memeti.pdf.