Kim, H., J. A. Lee, H. J. Sim, M. D. Lima, R. H. Baughman, and S. J. Kim. “Temperature-Responsive Tensile Actuator Based on Multi-Walled Carbon Nanotube Yarn”. Nano-Micro Letters, vol. 8, no. 3, Feb. 2016, pp. 254-9, doi:10.1007/s40820-016-0084-6.