Hopfield-Tank neural net: Walsh to Fourier transform. - Dimitrios A. Karras; Stavros Varoufakis; George Antoniou; George B. Carayannis (Neurocomputing, 1992)

Constrained Learning in Neural Networks: Application to Stable Factorization of 2-D Polynomials. - Stavros J. Perantonis; Nikolaos Ampazis; Stavros Varoufakis; George Antoniou (Neural Process. Lett., 1998)