I. Tamayo Ávila, J. M. Nieto Jalil, J. Viteri Moya, G. M. E. Roldan Reascos, and A. V. Argüello Mejía, “Humidity contribution to formation and transport of space charge in LDPE using the Electroacoustic Pulse technique”, NS, vol. 7, no. 14, pp. 452–473, May 2015.