TY - BOOK ID - 146090957 TI - Emission lines in active galaxies: new methods and techniques : IAU Colloquium 159 AU - PETERSON, B.M. AU - CHENG, F.-Z. AU - WILSON, A.S. PY - 1997 SN - 1886733333 PB - Astronomical Society of the Pacific, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:146090957 AB - ER -