Yukhno, G. D., A. P. Krasnopyorova, and V. D. Trifonov. “Phase Equilibrium in Systems Poly-N-Vinylpyrrolidone – Inorganic Salts – Water”. Kharkiv University Bulletin. Chemical Series, no. 23, Sept. 2014, pp. 81-88, doi:10.26565/2220-637X-2014-23-10.