Anionic Effect of δ and χ Forms of Tris(alkoxo) Ligand Functionalized Anderson-Type Polyoxometalates on Nonlinear Optical Response of Porphyrin–POM Based Supramolecular CompoundsFarooq Khurum Shehzad, Di Yang, Lijuan Zhang et al.|The Journal of Physical Chemistry C|2018Cited by 30