1. Proposals for a European strategy of research, development and demonstration (RD&D) for renewable energy for small hydropower;Thematic Network on Small Hydropower (TN SHP),2005
2. General through-flow theory of fluid flow with subsonic or supersonic velocity in turbomachinery of arbitrary hub and casing shapes. NACA TN 2302;Wu,1951
3. A digital computer program for the through-flow fluid mechanics in an arbitrary turbomachine using a matrix method, R&M 3509;Marsh,1968
4. Use of arbitrary quasi-orthogonals for calculating flow distribution in the meridional plane of a turbomachine. NACA TN D-2546;Katsanis,1964
5. Use of arbitrary quasi-orthogonals for calculating flow distribution on a blade-to-blade surface in a turbomachine, NACA TN D-2809;Katsanis,1965