1. Energy Flow Chart for Germany 2011;Statistical Data from the German Federal Ministry of Economics and Technology,2012
2. Handbuch der Brennertechnik für Industrieöfen;Wünning,2007
3. The laminar horseshoe vortex;Baker;J. Fluid Mech.,1979
4. The turbulent horseshoe vortex;Baker;J. Wind Eng. Indus. Aerodyn.,1980
5. Oscillation of horseshoe vortex systems;Baker;J. Fluids Eng.,1991