@article{2002rare,
author={, .. and , .. and , .. and , ..},
title={Rare earth elements in rocks and minerals from alkaline plutons of the Kola Peninsula, NW Russia, as indicators of alkaline magma evolution},
journal={Russian Journal of Earth Sciences},
publisher={Геофизический центр Российской Академии Наук},
year={2002},
pages={187-209},
volume={4},
issue={3},
}