Kuzmichev VE, Kuzmichev VV. Behavior of the Gravitational System Close to The Planck Epoch. Ukr. J. Phys. [Internet]. 2018 Dec. 15 [cited 2025 Nov. 7];62(6):545. Available from: https://ujp.bitp.kiev.ua/index.php/fgy/article/view/2018674