Yep. Sorry for the late reply. I don't believe the two original authors are still here at CU. Though, you may contact Michael Main or Andrzej Ehrenfeucht with any concerns. They both have been around a while and are closest to theoretical CS.

It's a great read. Enjoy.

http://www.cs.colorado.edu/~main/theory.pdf

Facultly contact info can be found here: http://www.cs.colorado.edu/people/faculty/bytitle.html