D. N. Hai, N. V. Diep, H. N. Hien, N. T. Duc, P. D. Thuc, N. T. Khang, H. V. Bich and T. C. Son, Rheological properties of emulsion of crude oil and water, Vietnam J. Mech. 21 (1999) 213–230. DOI: https://doi.org/10.15625/0866-7136/10003.