Drasovean, Romana, and Simona Condurache-Bota. “Correlation Studies Between Sol Aging Time and Substrate Dipping Time Parameter and Optical Properties of Cobalt Oxide Layers”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 25, no. 1 (January 1, 2016): 17–25. Accessed September 15, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/5051.