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The SLEX Model of a Non-Stationary Random Process
Ombao, Hernando, (2002)
Theory and Methods - SLEX Analysis of Multivariate Nonstationary Time Series
Ombao, Hernando, (2005)
Theory and Methods - Smoothing Spline ANOVA for Time-Dependent Spectral Analysis
Guo, Wensheng, (2003)