@article{carvalho_santos_régis_2010,  title={Fundamentals of coaxial and coplanar coil arrays in induction tools},  volume={28},  ISSN={0102-261X},  url={https://doi.org/10.1590/S0102-261X2010000100002},  DOI={10.1590/S0102-261X2010000100002},  number={1},  journal={Revista Brasileira de Geofísica},  publisher={Sociedade Brasileira de Geofísica},  author={Carvalho, Paulo Roberto de and Santos, Walleson Gomes dos and Régis, Cícero Roberto Teixeira},  year={2010},  month={Jan},  pages={19–36} }