Reassessment of the $^56$Co emission from SN 1991T
Proceedings article published in 1997 by
D.~J Morris,
K. Bennett,
H. Bloemen,
R. Diehl 
,
W. Hermsen,
G.~G Lichti,
M.~L McConnell,
J.~M Ryan,
Schönfelder
,
W. Hermsen,
G.~G Lichti,
M.~L McConnell,
J.~M Ryan,
Schönfelder
