Papers on celtic astronomy or alike ?

Hi,

A couple of years ago, a researcher (from the U.S.A. or Europe) published
some papers dealing with a strange coincidence between the profile of
several constellations of the northern hemisphere (no more sure they were
all in the zodiac, probably not) and celtic or northern civilizations
trading posts around coastlines of western Europe (southern part between
Irland and Greece if I remember well).
For short, most of the bright stars of these constellations were exactly
superimposed to those trading posts...

I know there was a TV broadcast about this subject some years ago made by a
german TV, but today there is no more trace of this study or from this
author.

Could some specialists in archaeoastronomy provide me any info about the
work of this author or papers of interest ?

Thanks in advance

Thierry
http://www.astrosurf.com/lombry