1. Wind Effects on Buildings and Structures: Symposium No. 16, National Physical Laboratory,1963
2. Wind Effects on Buildings and Structures: International Research Seminar, National Research Council,1967
3. Wind Effects on Buildings and Structures: Symposium at Loughborough,1968
4. Vibration characteristics of a clamped-ring stiffened cylindrical shell;Sharma,1970
5. Vibration characteristics of a clamped-free and clamped-ring-stiffened circular cylindrical shell