@article{Abrosimov2019geometric-graphic,
author={Abrosimov, S.N. and Tikhonov-Bugrov, D.E. and Glazunov, K.O.},
title={Geometric-Graphic Student Olympiad in St. Petersburg},
journal={Geometry & Graphics},
publisher={INFRA-M Academic Publishing LLC.},
year={2019},
pages={76-86},
volume={7},
issue={2},
}