1. Fizicheskii entsiklopedicheskii slovar’ (Physical Encyclopedic Dictionary), Prokhorov, A.M., Ed., Moscow: Sovetskaya Entsiklopediya, 1984.
2. Kaldybaeva, K.A., Konstantinova, A.F., and Perekalina, Z.B., Girotropiya odnoosnykh pogloshchayushchikh kristallov (Gyrotropy of Uniaxial Absorbing Crystals), Moscow: Institut Sotsial’no-Ekonomicheskikh i Proizvodstvenno-Ekologicheskikh Problem Investirovaniya, 2000.
3. Blistanov, A.A., Kristally kvantovoi i nelineinoi optiki (Crystals of Quantum and Nonlinear Optics), Moscow: Mosk. Inst. Stalei i Splavov, 2000.
4. Zernike, F., Midwinter, J.E., and Jacobs, S., Applied Nonlinear Optics, New York: John Wiley & Sons, 1973.
5. Nikogosyan, D.N., Nonlinear Optical Crystals: A Complete Survey, New York: Springer, 2005. https://doi.org/10.1007/b138685