Li, J., W. Yue, Z. Guo, Y. Yang, X. Wang, A. Syed, and Y. Zhang. “Unique Characteristics of Vertical Carbon Nanotube Field-Effect Transistors on Silicon”.
Nano-Micro Letters
, vol. 6, no. 3, July 2014, pp. 287-92, doi:10.1007/BF03353793.