@ARTICLE {29,
author={C. A. Fernandes and A. Barbosa},
doi={},
journal={Journal of Electromagnetic Waves and Applications},
title={Complex Wave Radiation from a Sheath Helix Excited by the Circular Waveguide TE11 Mode},
year={1990},
month={June},
volume={4},
number={6},
pages={549-571},
ISSN={1569-3937}
}