Genetic algorithms for hybrid job-shop problems with minimizing the makespan and mean flkow time / Omid Gholami (Islamic Azad University - Mahmudabad center, Nour Branch, Mahmudabad, Iran), Yuri N. Sotskov (United Institute of Informatics Problems, National Academy of Sciences of Belarus), Frank Werner (Faculty of Mathematics, Otto-von-Guericke-University, Magdeburg)