-.IR troff (1),
-that finds and formats references. The input files (standard input by
-default) are copied to the standard output, except for lines between .[
-and .] command lines. Such lines are assumed to contain keywords as for
-.IR lookbib (1),
-and are replaced by information from a bibliographic data base. The
-user can avoid the search, override fields from it, or add new fields.
-The reference data, from whatever source, is assigned to a set of
+.IR troff (1)
+that finds and formats references for footnotes or endnotes.
+It is also the base for a series of programs designed to
+index, search, sort, and print stand-alone bibliographies,
+or other data entered in the appropriate form.
+.PP
+Given an incomplete citation with sufficiently precise keywords,
+.I refer
+will search a bibliographic database for references
+containing these keywords anywhere in the title, author, journal, etc.
+The input file (or standard input)
+is copied to standard output,
+except for lines between .[ and .] delimiters,
+which are assumed to contain keywords,
+and are replaced by information from the bibliographic database.
+The user may also search different databases,
+override particular fields, or add new fields.
+The reference data, from whatever source, are assigned to a set of