1. Bregman, L.M. (1967): Proof of the Convergence of Sheleikhovskii’s Method for a Problem with Transportation Constraints. Journal of Computational Mathematics and Mathematical Physics 7/1, 191–204 (Zhournal Vychislitel’noi Matematiki, USSR, Leningrad, 1967).
2. Bierkens, M.F.P., Finke, P.A., de Willigen, P. (2000): Upscaling and Downscaling Methods for Environmental Research. Kluwer, Dordrecht, The Netherlands.
3. Borwein, J.M., Lewis, A.S., Nussbaum, R.D. (1994): Entropy Minimization, DAD Problems, and Doubly Stochastic Kernels. Journal of Functional Analysis 123, 264–307.
4. Carruthers, G.A.P. (1956): An Historical Review of the Gravity and Potential Concepts of Human Interaction. Journal of American Institute of Planners 22.
5. Censot, Y., Zenios, S.A. (1997): Parallel Optimization. Oxford University Press.