@article{slyusar_sliusar_sheleg_2023,  title={Double Negative Metamaterial Based on Moebius Strip},  volume={22},  ISSN={2179-1074},  url={https://doi.org/10.1590/2179-10742023v22i1265837},  DOI={10.1590/2179-10742023v22i1265837},  number={1},  journal={Journal of Microwaves, Optoelectronics and Electromagnetic Applications},  publisher={Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo},  author={Slyusar, Vadym and Sliusar, Ihor and Sheleg, Sergey},  year={2023},  month={Mar},  pages={121–139} }