Subject: OGIP/93-001: "Specification of Physical Units within OGIP FITS Files"

From: "Ian M George, Code 668, NASA/GSFC, USA (Usque ad mortem bibendum)" <GEORGE at lheavx.gsfc.nasa.gov>
Date: Thu, 21 Jul 1994 16:29:26 -0400 (EDT)

The latest version of the above document is actually dated 1993 Aug 06
and is available via anon ftp from legacy.gsfc.nasa.gov as:
 fits_info/fits_formats/docs/general/ogip_93_001.tex    (LaTeX source)
				     ogip_93_001.ps     (Postscript)

  [Unfortunately a number of people are having difficulties printing 
   the flavour of PS we seem to be making ... sorry, we're investigating]
Ian M George
HEASARC