Tillaev A., Dzhalilov A.T., Y. M. B. K. “Research of a New Pigment Based on Copper Phthalocyanin in Paint Coating Materials”. International Journal of Advanced Science and Technology, Vol. 29, no. 3, Feb. 2020, pp. 2244-5, http://sersc.org/journals/index.php/IJAST/article/view/4318.