Thakur, B.G. 2010. “Synthesis, Spectral and Thermal Studies of Praseodymium(III) and Samarium(III) Complexes With N,N?,N?-Tri(2,4- dihydroxybenzophenone)triaminotriethylamine”. Asian Journal of Chemistry 20 (6):4952-54. https://asianpubs.org/index.php/ajchem/article/view/19128.