M. Alibabashhikenari, B.S. Virdee, S. Aïssa, C.H. See, A.A. Althuwayb, R.A. Abd-Alhameed, Huynen, I., F. Falcone, & E. Limiti. (2021). Singular Integral Formulations for Electrodynamic Analysis of Metamaterial-Inspired Antenna Array. IEEE Antennas and Wireless Propagation Letters, 20(2), 179-184. https://doi.org/10.1109/LAWP.2020.3043380 (Original work published 2021)