[1] Jassimn H, Abdullah I, Shaban A. European Journal of Scientific Research, 2012, 74: 487.

[2] Palka N, Trzcinski T, Szustakowski M. Acta Physica Polonica A, 2012, 122: 946.

[4] Hosako I, Fukunaga K. J. Infrared Milli. Terahz. Waves, 2011, 32: 722.

[6] Naftaly M, Dudley R, Fletcher J, et al. J. Opt. Soc. Am. B, 2009, 26: 1357.

[7] Klatt G, Gebs R, Janke C, et al. Opt. Express, 2009, 17: 22847.

[8] Foltynowicz R J, Allman R E. Terahertz Time Domain Spectroscopy of Atmospheric Water Vapor From 0.4 to 2.7 THz. United States: Sandia National Laboratories, 2005.

[9] Xin X, Altan H, Saint A, et al. J. Appl. Phys., 2006, 100: 094905-1.

[10] Rothmana L S, Jacquemart D, Barbe A, et al. J. Quant. Spectrosc. Radiat. Transf., 2005, 96: 139.

[11] Varberg T D, Evenson K M. IEEE Trans. Instrum. Meas., 1993, 42: 412.

[12] Western C M. Pgopher, a Program for Simulating Rotational Structures. University of Bristol. http://pgopher.chm.bris.ac.uk.