Bai, Y. F., Bao, L., Hu, P., Wang, B. Q., Redshaw, C., & Zhao, K. Q. (2013). Copper-free click chemistry between azides and internal alkynes for triphenylene discotic liquid crystal trimer formation. Liquid Crystals, 40(1), 97-105. https://doi.org/10.1080/02678292.2012.733034