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Type II quasars from the Sloan digital sky survey. IV. Chandra and XMM-Newton observations reveal heavily absorbed sources
Andrew Ptak, Nadia L. Zakamska, Michael A. Strauss, Julian H. Krolik, Timothy M. Heckman, Donald P. Schneider, Jon Brinkmann
Research output: Contribution to journal › Article › peer-review
47
Scopus
citations