1. Wolpert D. Stacked generalization. Neural Netw. 1992;5(2):241–59.
2. Breiman L. Stacked regressions. Mach Learn. 1996;24:49–64.
3. van der Laan M, Dudoit S. Unified cross-validation methodology for selection among estimators and a general cross-validated adaptive epsilon-net estimator: finite sample oracle inequalities and example. Technical report 30, division of biostatistics, University of California, Berkeley. 2003.
4. van der Laan M, Dudoit S, van der Vaart AW. The cross-validated adaptive epsilon-net estimator. Stat Decis. 2006;24:373.
5. van der Laan MJ, Polley EC, Hubbard AE. Super learner. Stat Appl Genet Mol Biol. 2007; 6:Article 25.