@article{Kovaleva2015review,
author={Kovaleva, T..},
title={REVIEW OF METHODOLOGICAL APPROACHES TO EVALUATION OF THE LEVEL OF SCIENTIFIC AND TECHNICAL PROGRESS: COUNTRY AND REGIONAL ASPECTS},
journal={Vestnik of Astrakhan State Technical University. Series: Economics},
publisher={Astrakhan State Technical University},
year={2015},
pages={20-32},
volume={2015},
issue={3},
}