Liu, B.-Y., Zhang, B., & Yang, X. (2015). Synthesis, Structure and Supramolecular Properties of 1,7’-bis[4-(3-Methyl-2,3-dihydro-pyrazol-1-yl)phenol]-1,4,7-trioxaheptane. Asian Journal of Chemistry, 27(4), 1339–1341. https://doi.org/10.14233/ajchem.2015.17871