Enchev, V. and Neykov, G.D. (1992) Tautomerism of Nunsubstituted pyrazolones (hydroxypyrazoles): MNDO and MNDO + CI study of Csubstituted tautomers. Journal of Molecular Structure: Theochem, 258(34), 217234.
 Nayak, A., Das, N.B., Mahapatra, B.B. and Mittra, A.S. (1981) Synthesis and fungitoxicity of cobalt(II) complexes with 2pyrazolin5one derivatives. Journal of the Indian Chemical Society, 58(4), 347349.
 Das, N.B., Nayak, A., Mahapatra, B.B. and Mittra, A.S. (1981) Complexes of Co(II), Ni(II), Cu(II) and Zn(II) with substituted pyrazolones used as potential fungicides. Journal of the Indian Chemical Society, 58(6), 337339.
 Weissberger, A. and Porter H.D. (1942) Investigation of pyrazole compounds. I, The reaction product of phenylhydrazine and ethyl cyanoacetate. Journal of the American Chemical Society, 64(9), 21332136.
 AbdelLatif, S.A., ElRoudi, O.M. and Mohamed, M.G.K. (2003) Chelation behavior of nitrosopyrazolones with Mn(II), Co(II), Ni(II), Cu(II) and Zn(II), Journal of Thermal Analysis and Calorimetry, 73(3), 939950.
 AbdelLatif, S.A. (2001) Synthesis and characterization of some 3phenyl4arylazo5pyrazolones with La(III), Ce(III), Th(IV) and UO2(VI) complexes. Synthesis and Reactivity in Inorganic and MetalOrganic Chemistry, 31(8), 13551374.
 Hassib, H.B. and AbdelLatif, S.A. (2003) Potentiometric, spectrometric thermal and conductimetric studies on some 3phenyl4(arylazo)5pyrazolones and their complexes with divalent cobalt metal ion. Spectrochimica Acta Part A, 59(11), 24252434.
 ElInany, G.A., ElWahab, S.A. and Issa, Y.M. (1982) Spectrophotometric studies on some 1phenyl3 methyl4arylhydrazone5pyrazolones and their complexes with some divalent transition metal ions. Egyptian Journal of Chemistry, 25(2), 101105.
 Wentworth, W.E. and Becker, R.S. (1962) Potential method for the determination of electron affinities of molecules: Application to some aromatic hydrocarbons Journal of the American Chemical Society, 84(22), 42634266.
 Temel, H., Cakir, ü., Otludil, B. and Ugras, H.I. (2001) Synthesis, spectral and biological studies of Mn(II), Ni(II), Cu(II), and Zn(II) complexes with a tetradentate Schiff base ligand. Complexation studies and the determination of stability constants (Ke). Synthesis and Reactivity in Inorganic and MetalOrganic Chemistry, 31(8), 13231337.
 ElShazly, R.M., AlHazmi, G.A.A., Ghazy, S.E., ElShahawi, M.S. and ElAsmy, A.A. (2005) Spectroscopic, thermal and electrochemical studies on some nickel (II) thiosemicarbazone complexes. Spectrochimica Acta Part A, 61(12), 243252.
 Speca, A.N., Karayanis, N.M. and Pyltewski, L.L. (1974) Chromium (III) and iron (III) perchlorate with the monoNoxides of 2,2’bipyridine and 1,10phenanthroline. Inorganica Chimica Acta, 9(C), 8793.
 ElAsmy, A.A. and Mounir, M. (1988) Electrical conductivity, spectral and magnetic properties of some transition metal complexes derived from dimedone bis (4phenylthiosemicarbazone). Transition Metal Chemistry, 13(2), 143145.