Nielsen, Niels Norby

Combined from CaltechAUTHORS

• Hudson, D. E. and Keightley, W. O., et el. (1964) A new method for the measurement of the natural periods of buildings; Bulletin of the Seismological Society of America; Vol. 54; No. 1; 233-241
• Nielsen, Niels Norby (1964) Dynamic response of multistory buildings