CEM methods in R.F and microwave engineering in the context of parameters that influence the outcome of modelingMohammed Ismail Mohammed, Mahder Girmay Gebremicaheal and Gebremichael YohannesEur. Phys. J. Plus, 135 10 (2020) 829DOI: https://doi.org/10.1140/epjp/s13360-020-00854-2