Here is the CMT Uptime check phrase
PUBLICATIONS

Text Interviews on Mobile Devices

Conrad, Frederick G; Hupp, Andrew L; Schober, Michael F; Yan, H Yanna. (2017). Text Interviews on Mobile Devices. In Biemer, Paul P., De Leeuw, Edith D., Eckman, Stephanie, Edwards, Brad, Kreuter, Frauke, Lyberg, Lars E., Tucker, Clyde, West, Brady T. (Ed.), Total Survey Error in Practice. 299-318.