Merlino, G., S. Arkoulis, S. Distefano, C. Papagianni, A. Puliafito, and S. Papavassiliou,  "Mobile Crowdsensing as a Service",  Future Gener. Comput. Syst., vol. 56, no. C, NLD, Elsevier Science Publishers B. V., pp. 623?639, March, 2016.