Tang, W., and J. Wang. “1D NiO-SnO2 Heterojunction Nanofibers As Acetone Sensor”. KnE Materials Science 1, no. 1 (October 12, 2016): 172-176. Accessed April 16, 2024. https://knepublishing.com/index.php/KnE-Materials/article/view/581.