Sokolenko, N., Ruban, E., Ostrovka, V., Oleksiy, M., Popov, Y. and Sedych, A. (2019) “Study of the toxicological characteristics of water-soluble surface-active substances obtained based on phenol, formaldehyde and sodium sulphite”, Technology audit and production reserves, 1(3(51), pp. 44–47. doi: 10.15587/2312-8372.2020.193074.