1. Kraszewski, A. “Microwave instrumentation for moisture content measurement,” J. Microwave Power, 8(3/4), pp. 323–335, 1973.
2. Kraszewski, A., Kulinski, S. and Stosio, Z. “Application of microwave method for moisture content measurement in wheat” (in Polish), Wilmer Rept. No. 51, p. 75, 1975.
3. Nelson, S. O. “Frequency dependence of the dielectric properties of wheat and the rice weevil,” Ph.D. Thesis, Iowa State University, Ames, Iowa, 1972.
4. Nelson, S. O. “Microwave dielectric properties of grain and seed,” Trans. ASAE, 16(5), pp. 902–905, 1973.
5. Nelson, S. O. and Stetson, L. E. “250 GHz to 12 GHz dielectric properties of grain and seed,” Trans. ASAE, 18(4), pp. 714–718, 1975.