Anh, N. T., P. T. Son, N. T. Van, H. T. H. Cam, N. Q. Minh, B. Huy, and P. V. Hoi. “Determination of Wavelength Shift of Fiber Bragg Grating Sensors by Tunable Single-Mode Diode Laser”. Communications in Physics, vol. 23, no. 1, Apr. 2013, p. 67, doi:10.15625/0868-3166/23/1/2613.