Hong Bi, Jian, Ji Mei Song, Zi Xiang Huang, Yi Hu Wang, Ling Tao Kong, and Nai Liang Hu. 2010. “Synthesis and Crystal Structure of the One-Dimensional Supramolecular Tetraazamacrocyclic Copper(II) Compound”. Asian Journal of Chemistry 18 (3):2365-70. https://asianpubs.org/index.php/ajchem/article/view/21026.