@article{2007two,
author={, .. and , .. and , .. and , ..},
title={Two spinel populations from the Cretaceous-Paleogene K/T boundary clay layer in the Gams stratigraphic sequence, Eastern Alps},
journal={Russian Journal of Earth Sciences},
publisher={Геофизический центр Российской Академии Наук},
year={2007},
pages={1-11},
volume={9},
issue={2},
}