@incollection{Gutiérrez-Meana,
author = {Javier Gutiérrez-Meana and José Á. Martínez-Lorenzo and Fernando Las-Heras},
title = {High Frequency Techniques: the Physical Optics Approximation and the Modified Equivalent Current Approximation (MECA)},
booktitle = {Electromagnetic Waves},
publisher = {IntechOpen},
address = {Rijeka},
year = {},
editor = {Ahmed Kishk},
chapter = {8},
doi = {10.5772/17307},
url = {https://doi.org/10.5772/17307}
}