.TH pjrec 1
.SH NAME
-pjrec - reconstruction from raysum projections
+pjrec - reconstruction from projections
.SH SYNOPSIS
.B pjrec projection-file image-file nx-image ny-image [OPTIONS]
.B \-\-version Print version
.TP 12
.B \-\-help Print a terse help message
+
+.SH AUTHORS
+Kevin Rosenberg, M.D. <kevin@rosenberg.net>
+
+.SH HISTORY
+.Nm pjrec
+was first written in 1983 using MS-DOS and an EGA display adapter. In 1999 it was ported to GNU/Linux and later ported to Microsoft Windows.
+
+.SH SEE ALSO
+.BR ctsim (1), ifinfo (1), if1 (1), if2 (1), ifexport (1), phm2pj (1), phm2if (1), pj2if (1), pjinfo (1)