2.9BSD/usr/src/cmd/refer/refer/READ_ME

This version of refer uses some predefined strings that the original
version did not; these must be defined by the macro package.
They are:

	Name	normal value		function
       -----   -----------------	-----------------------------------
	>; 	; (nroff only)		semicolon after label=> (label);
	<; 	; (troff only)		semicolon before label=> ;\ulabel\d

The above two are defined as:
		.if n .ds >; ;
		.if t .ds <; ;

The following are used only with the -m flag:
	(.	\& (			open delim for -m signal
	.)	)			close delim "  "    "
	[e 	\\fIet al.\\fP		used when >2 authors
	&1	&			used between second-to-last and last
					authors names in reference list
	&2	&			(auth1 \\*(&2 auth2, year)