Arif Sabah F. Difference between the effect of SiO2 fiber and GeO2 fiber on the fiber parameters using Sellmeier formula. J. eng. sustain. dev. [Internet]. 2012 Mar. 1 [cited 2025 May 13];16(1):232-44. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1175