@article{Agahanov2018work,
author={Agahanov, N.H.},
title={Work with Mathematically Gifted Children in a Multi-Level System of Subject Olympiads and Competitions},
journal={Profession-Oriented School},
publisher={INFRA-M Academic Publishing LLC.},
year={2018},
pages={19-26},
volume={6},
issue={5},
}