1. The inlet-vortex system of jet engines operating near the ground;Brix;Am. Inst. Aeronaut. Astronaut.,2000
2. C.L. Burley, T.F. Brooks, B. van der Wall, H. Richard, M. Raffel, P. Beaumier, et al., Rotor wake vortex definition – initial evaluation of 3-C PIV results of the Hart-II study, in: 28th European Rotorcraft Forum, 50, 2002.
3. Mechanisms of inlet vortex formation;de Siervi;J. Fluid Mech.,1982
4. ESDU, Data Item 82026: strong winds in the atmospheric boundary layer. Part I: hourly-mean wind speeds, 2002.
5. D.E. Glenny, Ingestion of debris into intakes by vortex action, Ministry of Technology, Aeronautical Research Council, C.P. No. 1114, 1968.