1. A.A. Ageev, On complexity of minimization problems for polynomials in Boolean variables, Upravlyaemye Sistemy, 23 (1983) 3–11 (in Russian).
2. V.L. Beresnev, An algorithm of implicit enumeration for the location and standardization type of problem, Upravlyaemye Sistemy, 12 (1974) 24–34 (in Russian).
3. V.L. Beresnev, An algorithm of minimization of polynomials in Boolean variables, Problemy Kibernetiki, 36 (1979) 225–246 (in Russian).
4. V.L. Beresnev, E.Kh. Gimadi, V.T. Dement'ev, Standardization extremal problems, Nauka, Novosibirsk, (1978) (in Russian).
5. V.P. Grishukhin, Polynomiality in the simple plant location problem, Centr. Econ.-Math Institute of USSR Acad. of Sci. (1978), preprint (in Russian).