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diff --git a/main.tex b/main.tex
index ad4a54e..1d6ba0f 100644
--- a/main.tex
+++ b/main.tex
@@ -216,7 +216,7 @@ components present in \eqref{eq:strain-components}, this rules out all of the
 If the \op\ transforms like $\Aog$ (e.g. a fluctuation in valence number), odd
 terms are allowed in its free energy and any transition will be first order and
 not continuous without fine-tuning. Since the \ho\ phase transition is
-second-order \brad{cite something}, we will henceforth rule out $\Aog$ \op s as
+second-order \cite{de_visser_thermal_1986}, we will henceforth rule out $\Aog$ \op s as
 well.  For the \op\ representation $\X$ as any of $\Bog$, $\Btg$, or $\Eg$, the
 most general quadratic free energy density is
 \begin{equation}