Giovanni Guida, Dino Mandrioli, Amedeo Paci, Marco Somalvico. An Integrated Theory of Problems as an Algebraic Base for Complexity Understanding and Automatic Problem Solving. In Jean Cea, editor, Optimization Techniques: Modeling and Optimization in the Service of Man, Part 2 - Proceedings, 7th IFIP Conference, Nice, September 8-12, 1975. Volume 41 of Lecture Notes in Computer Science, pages 98-129, Springer, 1975.
Abstract is missing.