@article{Schinzel:20099X, author = "Schinzel, Frank and Taylor, Greg B. and Stockdale, Christopher J. and Granot, Jonathan and Ramirez-Ruiz, Enrico", title = "{SN 2001em: Evidence for a dense circumstellar environment }", doi = "10.22323/1.072.0094", journal = "PoS", year = 2009, volume = "IX EVN Symposium", pages = "094" }