[1]
P. Schuller L., A. Sepúlveda V., A. Ellies Sch., and A. Castillo S., “Use of 137Cs in quantitative evaluation of soil erosión and sedimentation in a Palehuniult, located at the 9th Región”, Agro sur, vol. 27, no. 1, pp. 29–36, Jul. 1999.