What's an appropriate phrasing of a caveat about self-citation? I'm writing some report, and at a certain point I give an example by citation. The citation format is such that you don't see any names (e.g. "[123]") without visiting the bibliography; or maybe it's just initials. And I wasn't the only author. I would like to "warn" my readers to take the citation with a grain of salt, as I am relying on what is at least partly, if not mostly, my own perspective or my own arguments elsewhere. At the same time, I don't want it to sound like I'm boasting about being an author; nor that I'm making a stronger pitch of the cited paper; nor that I'm disparaging it somehow.

What's a good way to phrase this limite-caveat/weak-warning?

Note: 


I'm currently writing alone, am not using the first-person voice at all, and have just a handful third-person  "it is the author's opinion that" and similar expressions.
I can't presume to individually take the credit for the work in [123] which was a group effort.
"In previous  work [1-3] the author showed that ..."
or
"We have recently shown that ... [1-3]"

With phrases like that I never had a complaint from a peer-reviewer.