@article{Usachev2011knyaz',
author={Usachev, A..},
title={Knyaz' I.F.Mstislavskiy - zabytyy knizhnik XVI veka?},
journal={Bulletin of Nizhnevartovsk State University},
publisher={Nizhnevartovsk State University},
year={2011},
pages={15-24},
volume={},
issue={1},
}