Kiefer, Chris; Behrendt, Frauke: 'Smart e-bike monitoring system: real-time open source and open hardware GPS assistance and sensor data for electrically-assisted bicycles', IET Intelligent Transport Systems, 2016, 10, (2), p. 79-88, DOI: 10.1049/iet-its.2014.0251
IET Digital Library, https://digital-library.theiet.org/;jsessionid=2frkrnk4jelfm.x-iet-live-01content/journals/10.1049/iet-its.2014.0251