- Kaldellis J., Ktenidis P., 1990, "High Turning Limit and Jet Like Profiles in Secondary Flow Field of Axial Turbines", ASME Paper 90-GT-327, Brussels
- Kaldellis J., Ktenidis P., Kodossakis D., 1990, "Energy Exchange and Secondary Losses Prediction in High Speed Axial and Radial Compressors", ASME Paper 90-GT-229, Brussels