TY - BOOK AU - Beckmann,Volker AU - Shrader,Chris R. TI - Active galactic nuclei SN - 9783527666829 U1 - 524.738 BEC PY - 2012/// CY - Weinheim, Germany PB - Wiley-VCH Verlag KW - Active galactic nuclei N1 - Includes bibliographical references and index; License restrictions may limit access UR - http://www.columbia.edu/cgi-bin/cul/resolve?clio10085040 ER -