SIMBAD references

It has been noted by several contributors that star 96 of Sandage (1984, A.J. 89, 630; B = 18.55, V = 18.31) is close to that the position of SN 2004dj (cf. IAUC 8377, 8379). H. Yamaoka, Kyushu University, remarks that star 96 was questioned by Sandage and resolved by Larsen (1999, A.Ap. Suppl. 139, 393) to be a young massive cluster. He adds that, at the distance of NGC 2403, 1" translates to 15 pc (as large as the scale of young clusters), and Larsen gave the effective radius of this cluster (n2403-2866) as 4.3 pc, so that the nature of this source is necessarily uncertain.