Vinh, Pham Chi, Trinh Thi Thanh Hue, Dinh Van Quang, Nguyen Thi Khanh Linh, and Nguyen Thi Nam. 2010. “Method of First Integrals and Interface, Surface Waves”. Vietnam Journal of Mechanics 32 (2). Hanoi, Vietnam:107-20. https://doi.org/10.15625/0866-7136/32/2/310.