Klaus Kriegel, Stephan Waack. Lower bounds for Boolean formulae of depth 3 and the topology of the n-cube (preliminary version). In Lothar Budach, editor, Fundamentals of Computation Theory, FCT 85, Cottbus, GDR, September 9-13, 1985. Volume 199 of Lecture Notes in Computer Science, pages 227-233, Springer, 1985.
Abstract is missing.