Mula, G., Loddo, L., Pinna, E., Tiddia, M., Mascia, M., Palmas, S., Ruffilli, R., & Falqui, A. (2014). Characterisation of the Doping of Porous Si with Er through Electrochemical Impedance Spectroscopy. Chemical Engineering Transactions, 41, 403-408. https://doi.org/10.3303/CET1441068