//-->
Interpolation and backdating with a large information set
Angelini, Elena, (2003)
Frequency domain principal components estimation of fractionally cointegrated processes
Morana, Claudio, (2004)
Bootstrap methods for standard errors, confidence intervals, and other measures of statistical accuracy
Holden, Paul, (1986)
An introduction to the bootstrap
Efron, Bradley, (1993)
A framework for feature selection in clustering
Witten, Daniela M., (2010)