H. Abdullah, Gaillan, Bushra R. Mhdi, and Zina T.Ali. “Study the Effect of the Substrate on the FWHM Pulses for the Chirped Mirrors”. Mustansiriyah Journal for Sciences and Education 18, no. 3 (September 20, 2020): 153-164. Accessed October 20, 2021. https://edumag.uomustansiriyah.edu.iq/index.php/mjse/article/view/283.