@article{Petrov2013decorative,
author={Petrov, T.G. and Protopopov, E.N. and Shuyskiy, A.V.},
title={Decorative grown malachite. Nature and technology},
journal={Russian Journal of Earth Sciences},
publisher={Geophysical Center of the Russian Academy of Sciences},
year={2013},
pages={1-7},
volume={13},
issue={2},
}