1. Kelvin, On stationary waves in flowing water, Mathematical and Physical Papers, Vol. IV, Cambridge Press, 270–302, 1910
2. Limit process expansions and approximate equations;Cole, Julian D.,1980
3. N. N. Mosieev, On the Non-uniqueness of the Possible Forms of Steady Flows of a Heavy Fluid for Froude Numbers Close to 1, P.M.M. 21 860–864 (1957)
4. Solution of the problem of the motion of a vortex under the surface of a fluid, for Froude numbers near unity;Filippov, I. G.;J. Appl. Math. Mech.,1960