1. Robust Estimates of Location;Andrews,1972
2. Wide-band extraction of mantle P waves from ambient noise;Backus;Geophysics,1964
3. Spectral Analysis in Geophysics;Båth,1974
4. Modern techniques of power spectrum estimation;Bingham;IEEE Trans. Audio Electroacoust.,1967
5. The Measurement of Power Spectra;Blackman,1959