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About the author ⁄ Agha Hasan P. Eng et al.
Agha Hasan, P.Eng is a Principal with Halcrow Yolles in Toronto, Ontario. He has over 30 years of experience with analysis and design of tall buildings with special emphasis on wind and seismic effects. He may be reached at Agha.Hasan@halcrowyolles.com.