1. Asymptotic theory for principal component analysis;Anderson;Ann. Math. Stat.,1963
2. Scales of thermal variability in the tropical Pacific;Barnett;J. Geophys. Res.,1980
3. Random Data: Analysis of Measurement Procedures;Bendat,1971
4. The topography of empirical orthogonal functions;Buell,1975
5. On the physical interpretation of empirical orthogonal functions;Buell,1979