@article{Tselishcheva2014preparation,
author={Tselishcheva, I.. and Rumyantseva, I.. and Bolshakova, M..},
title={Preparation of 5–7 years children for school: world around and mathematics},
journal={Primary Education},
publisher={INFRA-M Academic Publishing LLC.},
year={2014},
pages={38-44},
volume={2},
issue={1},
}