Chemical Encyclopaedia. Bol'shaya Rossiiskaya Entsiklopediya, Moscow, 1992.
2.
ChapmanJ., and OwenL., J. Chem. Soc., 1950, p. 979.
3.
ExstedB. J., and UrbanM. W., J. Appl. Polym. Sci., 47, 1993, p. 2019.
4.
Solov'evA. M., and GrozdovA. G., Synthesis of copper phthalocyaninetetrasulphotetracarboxylic acid as the initial monomer for the production of phthalocyanine-containing polymers. Plast. Massy, No. 8, 2007, p. 25–27.