1. An experimental investigation of gas jets in confined swirling air flow;So;NASA CR 3832,1984
2. Recirculation in Swirling Flow: a Manifestation of Vortex Breakdown;Escudier;Brown Boveri Research Centre Report,1983
3. Axisymmetric swirl stabilized combustion;Wilhelmi;Ph.D. Thesis, University of London,1984
4. “Analysis of the ‘vortex breakdown’ phenomenon”, miszellanen Angewandten Mechanik;Squire,1962
5. Theory of the vortex breakdown phenomenon;Benjamin;JFM,1962