LIU, YONG-JUN, et al. “Synthesis and Crystal Structure of 3-(1,1,1,3,3,3-Hexamethyldisilazan- 2-Yl)-1-Phenyl-1H-Indene-2-Carbonitrile”. Asian Journal of Chemistry, vol. 19, no. 3, Mar. 2010, pp. 1983-7, https://asianpubs.org/index.php/ajchem/article/view/13770.