Modern Trends in Cybernetics and Systems [in three volumes].Proceedings of the Third International Congress of Cybernetics and Systems,Bucharest,Romania, August 25-29,1975. Vol. 3, Proceedings of Sections 5 [Communication,Education and Informatics], 6 [Artificial Intelligence] and 7[Neuro- and Bio-Cybernetics] - Rose J. (Berlin : Springer, 1977)