@Misc{ CFMPPT23, author = { Corbo Esposito, Antonio and Faella, Luisa and Mottola, Vincenzo and Piscitelli, Gianpaolo and Prakash, Ravi and Tamburrino, Antonello }, title = { Monotonicity principle for the imaging of piecewise nonlinear materials }, journal = { }, year = { 2023 }, pages = { }, URL = { http://cvgmt.sns.it/paper/6442/ }, note = { cvgmt preprint} }