1. De Maagt, P., Bolivar, P.H., and Mann, C., Terahertz science, engineering and systems—from Space to Earth applications, in Wiley Encyclopedia of RF and Microwave Engineering, Chang, K., Ed., New York: Wiley, 2005, p. 5157.
2. Kukutsu, N. and Kado, Y., NTT Tech. Rev., 2009, vol. 7, no. 3, p. 1.
3. Gulyaev, Yu.V., Krenitskii, A.P., Betskii, O.V., Maiborodin, A.V., and Kirichuk, V.F., Usp. Sovrem. Radioelektron., 2008, no. 9, p. 30.
4. Woolard, D.L., Jensen, J.O., and Hwu, R.J., Terahertz Science and Technology for Military and Security Applications, New York: World Scientific, 2008.
5. Rothman, L.S., Gordon, I.E., Babikov, Y., et al., J. Quant. Spectrosc. Radiat. Transfer, 2013, vol. 130, p. 4.