Ramalingam, Kuppukkannu, et al. “Pyrrolidinecarbodithioate As a Planarity Chuck in the Search for Cis-Platin Analogues of Nickel: Spectral, Single Crystal X-Ray Structural, BVS, and CSM Analysis of Some Planar nickel(II) Mixed Ligand Complexes”. European Journal of Chemistry, vol. 13, no. 1, Mar. 2022, pp. 117-25, doi:10.5155/eurjchem.13.1.117-125.2214.