Lakhvich В., and Varikov Г. “Study of the Properties Envelope-Forming Foam to Extinguish Flammable Fluids”. Vestnik of the Institute for Command Engineers of the MES of the Republic of Belarus, vol. 19, no. 1, Mar. 2014, pp. 73-81, https://journals.ucp.by/index.php/vice/article/view/475.