Kovalenko, Vadym, and Valerii Kotok. “Influence of Ultrasound and Template on the Properties of Nickel Hydroxide As an Active Substance of Supercapacitors”. Eastern-European Journal of Enterprise Technologies 3, no. 12 (93) (June 13, 2018): 32–39. Accessed April 28, 2024. https://journals.uran.ua/eejet/article/view/133548.