Mago, O., J. Betancourt, E. Castillo, G. González, and G. Marín. “Frequency of Pseudomonas Spp. Fluorescent Groups From Different Health Centers in Nueva Esparta State-Venezuela”. Kasmera, Vol. 32, no. 2, Nov. 2004, pp. 80-88, http://www.produccioncientifica.luz.edu.ve/index.php/kasmera/article/view/4739.