Redshaw, C., Rowe, O., Hughes, D. L., Fuller, A. M., Ibarra, I. A., & Humphrey, S. M. (2013). New structural motifs in lithium and zinc calix[4]arene chemistry. Dalton Transactions : an international journal of inorganic chemistry, 42(6), 1983-1986. https://doi.org/10.1039/c2dt32986g