Srivastava, K. and Kumar, A. (2010) “UV Spectral Studies in Protonation of Cu-Phthalocyanine and Phthalocyanine in Sulphuric Acid-Solvent”, Asian Journal of Chemistry, 13(4), pp. 1539–1543. Available at: https://asianpubs.org/index.php/ajchem/article/view/22838 (Accessed: 29 November 2024).