M. M. Zgoda, W. Hreczuch, M. Woskowicz, M. Nachajski, and M. Kołodziejczyk, “Surfactants from the group of fatty acids polyoxyethylenated esters. Part I. Hydrophylic-lipophilic equilibrium (HLB), solubility parameter and a type of surface activity of the rape oil fatty acids methyl esters oxyethylenation products”, p, vol. 48, no. 5, pp. 365–370, Sep. 2022.