The Influence of Multi-Level Coverage on Efficiency of Ambulances Relocation Optimization Process Based on the AVL Data Autori: Čedomir Vasić, Dejan Rančić, Leonid Stojmenov, Jelena Gavrilović, Nebojša Arsić Izdanje: Sinteza 2016 - International Scientific Conference on ICT and E-Business Related Research DOI: 10.15308/Sinteza-2016-526-532