1. Abramowitz, M. (ed.) Handbook of Mathematical Functions. Nat. Bureau of Standards, 1964.
2. General Systems Theory and Systems Research - Contrasting Conceptions of Systems Science.;Ackoff;General Systems,1963
3. A Simulation Study for the Maximization of Hydroelectric Energy in the Keban Reservoir.;Akmanoglu;Proc. IAHR:,1973
4. G.A. Alekseyev: Graphical and Analytical Methods of Determination of Sample and Population Parameters of Distribution Functions. Trudy GGI, 73, Gidrometizdat, Leningrad, 1960 (in Russian).
5. Operations Analysis in Business Practice.;Alexy;SVTL, Bratislava,1967