@article{Shcherbakova2012phenomenon,
author={Shcherbakova, L..},
title={PHENOMENON OF FRONTIER CITY: ASTRAKHAN OF XVI-XVII CENTURIES IN EUROPEANS OPINION},
journal={Vestnik of Astrakhan State Technical University},
publisher={Astrakhan State Technical University},
year={2012},
pages={123-129},
volume={2012},
issue={2},
}