T. G. Dominguez-Gomez, H. Gonzalez-Rodriguez, I. Cantu-Silva, R. G. Ramirez-Lozano, M. V. Gomez-Meza, and M. D. Socorro Alvarado, “Deposition of Micro-elements through Leaf Fallen from Different Types of Vegetation, North-eastern Mexico”, IJBSM, vol. 5, no. Mar, 1, pp. 001–006, Mar. 2014.