@ARTICLE{
author={Miljkovic Stefan,Ogrizovic Vukan R,Delcev Sinisa T,Gucevic Jelena P},
year={2019},
title={Determination of Aiming Error with Automatic Theodolites},
journal={ADVANCED TECHNOLOGIES, SYSTEMS, AND APPLICATIONS III, VOL 2},
volume={60},
number={},
pages={273-284},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Gucevic Jelena P,Miljkovic Stefan,Delcev Sinisa T,Ogrizovic Vukan R},
year={2017},
title={Effects of Low Temperatures in the Line of Sight of Digital Levels},
journal={JOURNAL OF SURVEYING ENGINEERING},
volume={143},
number={2},
pages={-},
document_type={Article},
}