TY - BOOK ID - 8532273 TI - An introduction to active galactic nuclei PY - 1997 SN - 0521473489 0521479118 PB - Cambridge : Cambridge University Press, DB - UniCat KW - Active galactic nuclei. KW - Noyaux actifs de galaxies. UR - https://www.unicat.be/uniCat?func=search&query=sysid:8532273 AB - ER -