@article{Reli__2018,
title={Ranking and similarity of conventional,
microwave and ultrasound element sequential extraction methods},
volume={198},
ISSN={0045-6535},
url={http://dx.doi.org/10.1016/j.chemosphere.2017.12.200},
DOI={10.1016/j.chemosphere.2017.12.200},
journal={Chemosphere},
publisher={Elsevier BV},
author={Relić,
Dubravka and Héberger,
Károly and Sakan,
Sanja and Škrbić,
Biljana and Popović,
Aleksandar and Đorđević,
Dragana},
year={2018},
month=may,
pages={103–110} }