SN 2004dk:

P200+DBSP, August 18, Soderberg
P200/DBSP, August 20, Gal-Yam and Fox
P200/DBSP/spec-pol, August 21, Gal-Yam, Fox and Leonard
P200/DBDP, Spetember 8, Soderberg and Leonard
P200/DBSP, September 23, Fox and Moon.