Harutunyan, G. H., Movsissyan, A. G., & Piloyan, A. S. (2023). COSMOLOGICAL MODELS IN THE PRESENCE OF SCALAR FIELDS. Proceedings of the YSU A: Physical and Mathematical Sciences, 42(1 (215), 47–54. https://doi.org/10.46991/PYSU:A/2008.42.1.047