refer(1) on Linux
The text 16e9d89b2a06, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
preprocess bibliographic references for groff
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-a -
-b -
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-e -
-f -
-i -
-k -
-l -
-n -
-p -
-s -
-t -
-v