@ARTICLE{
author={Ljubojev Milenko,Popovic Ratomir,Avdic Melvudin,Djurdjevac-Ignjatovic Lidija,Ljubojev Vesna},
year={2010},
title={Defining the legality of gray sandstone rock strength testing in a complex state of stress},
journal={TECHNICS TECHNOLOGIES EDUCATION MANAGEMENT-TTEM},
volume={5},
number={3},
pages={437-443},
document_type={Article},
}