@article{Guznenkov2013principles,
author={Guznenkov, V.. and Yakunin, V..},
title={PRINCIPLES OF FORMATION OF THE STRUCTURE AND CONTENT OF GEOMETRICAL GRAPHICS PREPARATION},
journal={Standards and Monitoring in Education},
publisher={INFRA-M Academic Publishing LLC.},
year={2013},
pages={34-39},
volume={1},
issue={6},
}