Prakash Sankaran Empirical orthogenal function analysis of the inter annual variability at 850 hPa of the Northeast over South East Asia / by Prakash Sankaran and Quah Leong Chuan - Petaling Jaya : Perkhidmatan Kajicuaca Malaysia, 1988 - 34 p. : ill. Subjects--Topical Terms: FunctionsOrthogonal