@article{belov_naumova_akopyan_2015,  title={Effect of Calcium on Structure, Phase Composition and Hardening of Al-Zn-Mg Alloys Containing up to 12wt.%Zn},  volume={18},  ISSN={1516-1439},  url={https://doi.org/10.1590/1516-1439.036415},  DOI={10.1590/1516-1439.036415},  number={6},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Belov, Nikolay Aleksandrovich and Naumova, Evgenia Alexandrovna and Akopyan, Torgom Karoevich},  year={2015},  month={Nov},  pages={1384–1391} }