Add primary paper.

diff --git a/tags/ligase.mdwn b/tags/ligase.mdwn
index 89da0e55f80f6aa391ef9a87b300e719157fd64a..d80e08ef66b7f866c00a0e49f3e2dc711012e5b1 100644 (file)
--- a/tags/ligase.mdwn
+++ b/tags/ligase.mdwn
@@ -4,6 +4,7 @@ Work in progress.
 
 On T4 RNL2:
 
+ - Primary paper: [[Ho et al., 2002|biblio/12228725]].
  - Functional residues analysed by [[Yin et al., 2003|biblio/12611899]].
  - The truncated Rnl2 was published by [[Ho et al., 2004|biblio/14962393]].
  - Ligation of RNA to a DNA acceptor is very weak ([[Yin et al., 2004|biblio/14967495]]).