T. B. Bigil'deeva, T. V. Ganzha, A. A. Tret'yakov, A. S. Yaitskov, “A model and a method for solving an extremal allocation problem in
the design of high-speed computers”, Dokl. Akad. Nauk SSSR, 314:3 (1990), 573–575; Dokl. Math., 35:9 (1990), 779–780
