TY - BOOK ID - 137682126 TI - Further spectroscopic observations of the nucleus of the Seyfert galaxy NGC 4151 AU - Anderson, Kurt S. AU - Kraft, Robert P. PY - 1971 PB - Santa Cruz Lick Observatory DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:137682126 AB - ER -