1. Handbook of mathematical functions with formulas, graphs and mathematical tables;Abramowitz;Nat. Bur. Stands,1964
2. Topographic Effects in Stratified Flows;Baines,1995
3. The critical layer for gravity waves in a shear flow;Booker;J. Fluid Mech.,1967
4. Gravity wave dynamics and effects in the middle atmosphere;Fritts;Rev. Geophys.,2003
5. An introduction to atmospheric gravity waves;Nappo,2002