Towards two-tier citizen sensing. - Julio De Melo Borges; Matthias Budde; Oleg Peters; Till Riedel; Michael Beigl (ISC2, 2016)

EstaVis: A Real-World Interactive Platform for Crowdsourced Visual Urban Analytics. - Julio De Melo Borges; Matthias Budde; Oleg Peters; Till Riedel; Andrea Schankin; Michael Beigl (Urb-IoT, 2016)