1. N. Alon, W. Maass: Meanders and their application in lower bounds arguments, J. Comp. Syst. Sci., 37(1988), 118–129.
2. A. E. Andreev: On a method giving larger than quadratic effective lower bounds for the complexity of π-schemes, Vestnik Moscow Univ. Ser. 1 (Math. Mech.), 1986, No. 6, 73–76. (In Russian.)
3. L. Babai, P. Pudlák, V. Rödl, E. Szemerédi: Lower bounds to the complexity of symmetric functions, preprint (1986).
4. E. G. Belaga: Locally synchronous complexity in the light of the trans-box method, 1. STACS, LNCS 166(1984), 129–139.
5. E. G. Belaga: Constructive universal algebra: an introduction, Theor. Comp. Sci., 51(1987), 229–238.