1. Semi-a. Rep. NASA;Klein;The development of vibration test specifications for spacecraft applications,1965
2. Measurement and Analysis of Random Data;Bendat,1966
3. Shock, Vibration and Associated Environments Bulletin No. 29;Kelly;A method for the analysis of short-duration nonstationary random vibration,1961
4. Shock, Vibration and Associated Environments Bulletin No. 33;Schoenemann;Techniques for analyzing nonstationary vibration data,1964
5. Semi-a Rep. NASA;Piersol;Spectral analysis of nonstationary spacecraft vibration data,1965