@article{article, title = {{An introduction to active galactic nuclei: Classification and unification}},
url = {{}},
year = {{2008}},
month = {{1}},
author = {{Tadhunter C}},
doi = {{10.1016/j.newar.2008.06.004}},
volume = {{52}},
journal = {{New Astronomy Reviews}},
issue = {{6}},
pages = {{227-239}},
note = {{Accessed on 2025/07/15}}}