@ARTICLE{Savchuk_V._Modern_2015,
 author={Savchuk, V. and Pasichnyk, V.},
 number={No 3},
 journal={ECONTECHMOD},
 howpublished={online},
 year={2015},
 publisher={Polish Academy of Sciences Branch in Lublin},
 publisher={Lviv Polytechnic National University},
 publisher={Foundry Research Institute in Cracow},
 title={Modern tendention in the use of gps technology in tourism industry},
}