Yang, Juan, and Hua-Ze Dong. 2011. “Synthesis and Crystal Structure of One-Dimensional Zig-Zag Polymer Cadmium(II): {[Cd(Μ-L)(NO3)2H2O]2H2O}n”. Asian Journal of Chemistry 24 (3):1055-57. https://asianpubs.org/index.php/ajchem/article/view/8708.