Zhitetsky , L. S., O. M. Suprun, O. A. Sushchenko, and R. O. Lupoy. 2006. “NUMERICAL METHODS OF OPTIMIZATION OF SIMPLE DISCRETE DYNAMIC SYSTEM WITH LIMITING UNCERTAINTIES”. Problems of Informatization and Control 1 (16):61-70. http://jrnl.kai.edu.ua/index.php/PIU/article/view/16400.