TY - CPAPER AU - R. Nikolaev AU - T. Milkova AU - D. Zhelyazkova TI - MODELING OF OPTIMAL STRUCTURE OF THE PASSENGERS TRANSPORT IN BULGARIA T2 - 4th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2017 PY - 2017 SP - 525 EP - 532 DO - 10.5593/sgemsocial2017/14/S04.069 PB - STEF92 Technology ER -