@article{cakoni_colton_2006,  title={Target identification of buried coated objects},  volume={25},  ISSN={1807-0302},  url={https://www.scielo.br/j/cam/a/9q33vk6hXsXqshPyDBcDwHx/},  number={2-3},  journal={Computational & Applied Mathematics},  publisher={Sociedade Brasileira de Matemática Aplicada e Computacional},  author={Cakoni, Fioralba and Colton, David},  year={2006},  pages={269–288} }