Li, Jianqiang. “Fabrication and Efficient Acidichromism of Langmuir-Blodgett Films of Azo Group-Modified Phthalocyanines”. Asian Journal of Chemistry 25, no. 4 (November 2, 2012): 2278–2280. Accessed July 22, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_4_117.