@article{Gal'chenko2021the,
author={Gal'chenko, A.V.},
title={The meaning of life in various historical ages:  from Antiquity to existentialism of XX century},
journal={Journal of Philosophical Research},
publisher={INFRA-M Academic Publishing LLC.},
year={2021},
pages={3-15},
volume={7},
issue={4},
}