Cross-References for Markarian 50
0)
Numbering system adopted in WEBDA
1)
Grubissich C.
1965, Z. Astrophys. 60, 256
2)
Fenkart R.P., Schroder A.
1985, Astron. Astrophys. Suppl. 59, 83
3)
Baume G., et al.
2004, Mon. Not. R. Astron. Soc. 355, 475