Mrk 421
SN2004at
SN2004as
SN2004ar
SN2004U type II NED CfA Spectrum KAIT SNWeb2 D.Bishop
SN2004T type II NED CfA Spectrum KAIT SNWeb2 D.Bishop
SN2004S Type Ia NED SNWeb2 D.Bishop
SN2003gt in NGC6930 NED
SN2003gs in NGC936 NED