@ARTICLE{
author={Radojevic Marina,Jovic Vidojko M,Karaulic Dragomir,Vitorovic Dragomir K},
year={2002},
title={Study of sepiolite from Goles (Kosovo, Yugoslavia). II. Acid activation},
journal={JOURNAL OF THE SERBIAN CHEMICAL SOCIETY},
volume={67},
number={7},
pages={499-506},
document_type={Article},
} 

@ARTICLE{
author={Radojevic Marina,Jovic Vidojko M,Vitorovic Dragomir K},
year={2002},
title={Study of sepiolite from Goles (Kosovo, Yugoslavia). I. Sorption capacity},
journal={JOURNAL OF THE SERBIAN CHEMICAL SOCIETY},
volume={67},
number={7},
pages={489-497},
document_type={Article},
}