@article{2004the,
author={, .. and , .. and , .. and , .. and , .. and , .. and , ..},
title={The Elbrus Caldera in the Northern Caucasus: Geological structure and time of formation},
journal={Russian Journal of Earth Sciences},
publisher={Геофизический центр Российской Академии Наук},
year={2004},
pages={251-255},
volume={6},
issue={4},
}