@ARTICLE{
author={Jovanovic Bojan BO,Mostarac Katarina,Sarac Dragana,Rakic Estera},
year={2015},
title={Express Services Market Analysis Based on the Lotka-Volterra Model - Case Study Serbia},
journal={PROMET-TRAFFIC & TRANSPORTATION},
volume={27},
number={2},
pages={173-180},
document_type={Article},
}