Gaur, Santwana, Rajani Purohit, and Mamta Ranka. 2010. “Physico-Chemical and Catalytic Studies on Complexation Behaviour of Polystyrene-1,10-Phenanthrolino-5,6-Bis-4’,5-Dihydroxyimino-7-Methoxy Isoflavone With Some Transition Metals”. Asian Journal of Chemistry 20 (8):5843-48. https://asianpubs.org/index.php/ajchem/article/view/13028.