J.-H. Kwon, S.-B. Lee, J. Park, K.-S. Hwang, Y. Lim, and E.-J. Kim, “Adaptive Resource Observation for Congestion Alleviation using Constrained Application Protocol”, IJET, vol. 7, no. 4.38, pp. 885–887, Dec. 2018, doi: 10.14419/ijet.v7i4.38.27601.