1. Encyclopaedia Metropolitana;Airy,1845
2. Study of wave propagation in water of gradually varying depth;Biesel;Gravity Waves, Nat. Bur. Standards, Circ.,1951
3. Reflection of solitary waves;Caldwell,1949
4. The propagation of gravity waves from deep to shallow water;Eckart;Gravity Waves, Nat. Bur. Standards, Circ.,1951
5. Theorie der Wellen;Gerstner;Abh. K. Böhm. Ges. Whs.,1802