In situ measurements of complex permittivity and moisture content in oil palm fruits K. Y. Lee, Z. Abbas, Y. K. Yeow, M. D. Nur Sharizan and C. E. Meng Eur. Phys. J. Appl. Phys., 49 3 (2010) 31201 Published online: 16 February 2010 DOI: 10.1051/epjap/2010007