1. Habashy, T. M., M. L. Oristaglio, and A. T. de Hoop, "Simultaneous nonlinear reconstruction of two-dimensional permittivity and conductivity," Radio Science, Vol. 29, 1101-1118, 1994.
doi:10.1029/93RS03448
2. Van den Berg, P. M. and R. E. Kleinman, "A contrast source inversion method," Inverse Problems, Vol. 13, 1607-1620, 1997.
doi:10.1088/0266-5611/13/6/013
3. Van den Berg, P. M., A. L. van Broekhoven, and A. Abubakar, "Extended contrast source inversion," Inverse Problems, Vol. 15, 1325-1344, 1999.
doi:10.1088/0266-5611/15/5/315
4. Belkebir, K. and M. Saillard, "Guest editors' introduction, special section: testing inversion algorithms against experimental data," Inverse Problems, Vol. 17, 1565-1571, 2001.
doi:10.1088/0266-5611/17/6/301
5. Bloemenkamp, R. F., A. Abubakar, and P. M. van den Berg, "Inversion of experimental multi-frequency data using the contrast source inversion method," Inverse Problems, Vol. 17, 1611-1622, 2001.
doi:10.1088/0266-5611/17/6/305
6. Abubakar, A., P. M. van den Berg, and J. J. Mallorqui, "Imaging of biomedical data using a multiplicative regularized contrast source inversion method," IEEE Transactions on Microwave Theory and Techniques, Vol. 50, 1761-1771, 2002.
doi:10.1109/TMTT.2002.800427
7. Van den Berg, P. M., A. Abubakar, and J. T. Fokkema, "Multiplicative regularization for contrast profile inversion," Radio Science, Vol. 38, 1-10, 2003.
doi:10.1029/2001RS002555