Petrov, J. G., Moebius, D., & Angelova, A. (1992). Effect of the electrostatic and structural surface forces on the contact angles in Langmuir-Blodgett systems of cationic surfactants. 1. Homogeneity and electrostatic properties of mixed monolayers of methyl arachidate and dimethyldioctadecylammonium bromide. Langmuir, 8(1), 201-205.