Issue No.11 - November (1975 vol.24)
C.C. Cheung , Department of Electrical and Computer Engineering, University of Massachusetts
The realization of arbitrary switching functions using the universal logic modules of Yau and Tang ,  has the disadvantage that, in general, large trees of modules result. A decomposition theorem and an algorithm are given for reducing the size of such trees, using what is called a chain decomposition.
Chain decomposition, Shannon decomposition, universal logic module.
C.C. Cheung, R.W. Ehrich, "On the Minimization of Tree-Type Universal Logic Circuits", IEEE Transactions on Computers, vol.24, no. 11, pp. 1110-1113, November 1975, doi:10.1109/T-C.1975.224141