Kuryshchuk, S.I., et al. “Optical and Electrical Properties of CuO Thin Films by Spray Pyrolysis Method”. Acta Physica Polonica A ISSN 1898-794X , vol. 142, no. 5, Dec. 2022, p. 625, https://doi.org/10.12693/APhysPolA.142.625.