Appenzeller, I., & Krautter, J. (2000). Identification of a complete sample of northern ROSAT All-sky survey X-ray sources: VII. The AGN subsample. Arxiv.
Chicago Style (17th ed.) CitationAppenzeller, Immo, and Joachim Krautter. "Identification of a Complete Sample of Northern ROSAT All-sky Survey X-ray Sources: VII. The AGN Subsample." Arxiv 2000.
MLA (9th ed.) CitationAppenzeller, Immo, and Joachim Krautter. "Identification of a Complete Sample of Northern ROSAT All-sky Survey X-ray Sources: VII. The AGN Subsample." Arxiv, 2000.
Warning: These citations may not always be 100% accurate.