@inproceedings{Dultzin:2011Az, author = "Dultzin, Deborah", title = "{Narrow-Line Seyfert 1s: a luminosity dependent definition}", doi = "10.22323/1.126.0012", booktitle = "Proceedings of Narrow-Line Seyfert 1 Galaxies and their place in the Universe {\textemdash} PoS(NLS1)", year = 2011, volume = "126", pages = "012" }