FTOOLS HELP DESK
If FTOOLS has been useful in your research, please reference this website (http://heasarc.gsfc.nasa.gov/ftools/) and the following:
Blackburn, J. K. 1995, in ASP Conf. Ser., Vol. 77, Astronomical Data Analysis Software and Systems IV, ed. R. A. Shaw, H. E. Payne, and J. J. E. Hayes (San Francisco: ASP), 367.
Web page maintained by: Bryan K. Irby