“New Modulation Method in FSO Communication Using Different Wavelengths (650,532,405) nm in the Iraqi Weather”, Iraqi Journal of Science, vol. 59, no. 1A, pp. 233–239, Jan. 2018, Accessed: May 07, 2024. [Online]. Available: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/93