Looking for Phigs References

[Richard Weidner]

I am looking for references (title, author, publisher to papers,books, ?)
on Phigs.  I am using the SunPhigs 1.3 product with its manual set.
However, something more than a man page is required to understand Phigs
and Phigs+.  

I would apreciate any e-mail information available in the area of
references on Phigs. 

Thanks