Jiang, Xue-Kai, Min Deng, Lan Mu, Xi Zeng, Jian-Xin Zhang, and Takehiko Yamato. 2012. “Synthesis and Crystal Structure of a Novel Hexahomotrioxacalix[3]cryptand”. Asian Journal of Chemistry 25 (1):515-17. https://doi.org/10.14233/ajchem.2013.13395.