@ARTICLE{
author={Obradovic Aleksandar M,Vukovic Josif,Mladenovic N,Mitrovic Zoran S},
year={2011},
title={Time optimal motions of mechanical system with a prescribed trajectory},
journal={MECCANICA},
volume={46},
number={4},
pages={803-816},
document_type={Article},
} 

@ARTICLE{
author={Bugaric Ugljesa S,Vukovic Josif,Petrovic Dusan B,Jeli Zorana V,Petrovic Zoran},
year={2009},
title={Optimization of the Unloading Bridge Working Cycle},
journal={STROJNISKI VESTNIK-JOURNAL OF MECHANICAL ENGINEERING},
volume={55},
number={1},
pages={55-63},
document_type={Article},
} 

@ARTICLE{
author={Vukovic Josif,Bugaric Ugljesa S,Glisic Dusan,Petrovic Dusan B},
year={2007},
title={Optimization of the working cycle of harbour cranes},
journal={JOURNAL OF THEORETICAL AND APPLIED MECHANICS},
volume={45},
number={1},
pages={147-159},
document_type={Article},
}