1. Radioactividad natural en diversos compartimentos naturales de Andalucía;Martínez-Aguirre,1991
2. Radioactive impact of the phosphate ore processing in a wet marshland in Southwestern Spain;Martínez-Aguirre;J. Envir. Radioactiv.,1996
3. The distribution of U, Th and 226Ra derived from the phosphate fertilizer industries on an estuarine system in Southwest Spain;Martínez-Aguirre;J. Envir. Radioactiv.,1994
4. Principles of Plant Nutrition;Mengel,1979
5. The plant concentration ratio concept as applied to natural U;Sheppard;Health Phys.,1985