Cuestiones fundamentales de la cibernética - Bertaux, Pierre; Couffignal, Louis; Fleming, David G; Haseloff, Otto Walter; Hassenstein, Bernhard; Jenik, Franz; Jung, Richard; Keidel, Wolf Dieter; Reichardt, Werner; Schmidt, Hermann; Steinbuch, Karl; Wagner, Wilhelm Richard; et al. (Tiempo Nuevo, 1970)