Media type: E-Article Title: Nonlinear shrinkage estimation of large integrated covariance matrices Contributor: Lam, Clifford; Feng, Phoenix; Hu, Charlie Published: Oxford University Press (OUP), 2017 Published in: Biometrika, 104 (2017) 2, Seite 481-488 Language: English DOI: 10.1093/biomet/asx021 ISSN: 0006-3444; 1464-3510 Origination: Footnote: