Vernon Turner, Carrie MacGillivray, Marcus Torchia, Madeleine Cinco, Milan Kalal, Monika Kumar, Roberto Membrila, Andrea Siviero, Yuta Torisu, Nigel Wallis. Worldwide Internet of Things Forecast Update, 2016–2020, #US40755516/IDC, May 31, 2016. https://www.idc.com/getdoc.jsp?containerId=US40755516
