References
- BolíVar, J. P., 1995: Aplicaciones de la espectrometría gamma y alfa al estudio del impacto radiactivo producido por industrias no nucleares. — Ph. D. Thesis, Universidad de Sevilla, Sevilla.
- BolíVar, J. P., GarcíA-Tenorio, R. & GarcíA- LeóN, M., 1994: A generalized transmission method for gamma-efficiency determinations in soil samples. — Nucl. Geophys. 8: 485–492.
- BolíVar, J. P., MartíNez-Aguirre, A. & GarcíA- Tenorio, R., 1993: Radioactivity involved in the production of fertilizers: Radioecological Impact. — In: Pellicer, N. & Rigola, M. (eds.): Proceedings: Chemical Industry and Environment, Vol. III: 311–320. Girona, Spain, 2–4 June 1993.
- Guimond, R. J. & Hardin, J. M., 1989: Radioactivity released from phosphate containing fertilizers and from gypsum. — Radiat. Phys. Chem. 34: 309–315.
- Holm, E. & Fukai, R., 1977: Method for multi-element alpha-spectrometry of actinides and its applications to environmental radioactivity studies. — Talanta 24: 659–664.
- Requena, A. A., Claus, F. L. & Fernandez-Caliani, J. C., 1991: Mineralogy and geochemical features of the recent sediments in the Odiel River (Huelva). — Cuaderno Lab. Xeolóxico de Laxe 16: 135–144 (in Spanish).
- Scott, M. R., 1982: The chemistry of U- and Thseries nuclides in rivers. — In: Ivanovich, M. & Harmon, R. S. (eds.): Uranium Series Disequilibrium: Applications to Environmental Problems: 181–201. Clarendon Press, Oxford.