Kotok, V. and Kovalenko, V. 2020. Influence of used polyvinyl alcohol grade on the electrochromic properties of Ni(OH)2-PVA composite films. Eastern-European Journal of Enterprise Technologies. 5, 6 (107) (Oct. 2020), 58–65. DOI:https://doi.org/10.15587/1729-4061.2020.214239.