Tuan, Phan Anh, Pham Thi Thanh Huong, and Vu Duy Quang. 2013. “A Method of Skin Frictional Resistant Reduction by Creating Small Bubbles at Bottom of Ships”. Vietnam Journal of Mechanics 35 (4). Hanoi, Vietnam:325-33. https://doi.org/10.15625/0866-7136/35/4/2913.