Actually, this is one of those embarrassing situations in which my favorite article on the subject is one I wrote. Oh well.
Check out "Shame, Compassion, and the 'Borderline' Personality." Psychiatric Clinics of North America. 17:785-810, 1994. Let me know whether it seems useful to you. A more general reference that reads easily would be my 1992 book "Shame and Pride: Affect, Sex, and the Birth of the Self," WW Norton publisher.
After you've checked out this material, I'd be pleased were you to check back in with the rest of us on this forum so we can find out whether the reading was helpful.