Wow! That's what happens when an IT department at a university changes servers and doesn't inform the users. I'm sure I have the files around somewhere at school. It's easier for me to check from my office and I'm at home right now. Stay tuned ...
________________________________
From: David Craig <craigda@lemoyne.edu>
Sent: Friday, July 20, 2018 1:49:21 AM
To: phys-l@mail.phys-l.org
Cc: Craig David; Bill Nettles; jsd@av8n.com
Subject: [EXTERNAL] - RelDoppler: Spacetime Diagrams in LaTeX