Is Jefimenko's Approach to Relativity Based on Retarded Potentials Valid?

[Marc Millis]

I know this has been discussed here previously, but alas, I lost track. =20
Would any of you be so kind as to summarize the points / counter points=20
of Jefimenko's work?
From what little I remember, I got the impression=20
that Jefimenko is merely taking a retarded potential perspective (
propagation time considerations) to construct relativity rather than=20
starting with Lorentz transformations. I wanted to look at it further (
and have two of his books), but have not yet.
So, for those of you that=20
have looked at it, I'd appreciate a summary of the points, counter=20
points, and lingering unknowns regarding the utility and soundness of=20
the Jefimenko approach.

Thanks in advance,

Marc

 

[lalbatros]

I checked what I could on the web about this author.
I only found elementary electromagnetic theory presented sometimes with useless length.
Look like there is nothing to be learned.