In 1985 he published in Spanish his study on El uso de Modelos SistmicosCibernticos como metodologa cientfica (SystemicCybernetic Models used as scientific methodology) and in 1986 Enfoques Sistmicos en el Estudio de las .... SELYE, Hans: The Stress of Life Mc Graw Hill, New York, 1975. SHANNON, Cl. WEAVER, W.: The Mathematical Theory of Communication Univ. of Illinois Press, Urbana, 1949 () THOM, Rene: Structural Stability and Morphogenesis W.A. ...