Unusual quasars from the Sloan Digital Sky Survey selected by means of Kohonen self-organising maps⋆

Author： Meusinger H.   Schalldach P.   Scholz R.-D.   in der Au A.   Newholm M.   de Hoon A.   Kaminsky B.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|541|issue|A77-A77

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.541, Iss.issue, 2012-05, pp. : A77-A77

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