V.  Hartwig, Tassano, S., Mattii, A., Vanello, N., Positano, V., Santarelli, M. F., Landini, L., and Giovannetti, G., ?Computational Analysis of a Radiofrequency Knee Coil for Low-Field MRI Using FDTD?, APPLIED MAGNETIC RESONANCE, vol. 44, no. 3, pp. 389-400, 2013. 

V.  Hartwig, Cappelli, C., Vanello, N., Ricciardi, E., Scilingo, E. P., Giovannetti, G., Santarelli, M. F., Positano, V., Landini, L., and Bicchi, A., ?A Compatible Electrocutaneous Display for functional Magnetic Resonance Imaging application?, in Proc. 28th IEEE Engineering in Medicine and Biology Conference, 2006, pp. 100-102.