Storozh, O., Chuyko, G., Kudryk, T., Mykytyuk, Y., & Sushchyk, N. (2021). Vladyslav Elijovych Lyantse (in honour of the 100th anniversary of birth). Matematychni Studii, 55(2), 214-222. https://doi.org/10.30970/ms.55.2.214-222