diff --git a/dumux/material/binarycoefficients/h2o_air.hh b/dumux/material/binarycoefficients/h2o_air.hh
index 3731d68a9a1054e82d60a7a4f2c954897202fed5..7f83054788429327deaa78451e9e438e3f78f78d 100644
--- a/dumux/material/binarycoefficients/h2o_air.hh
+++ b/dumux/material/binarycoefficients/h2o_air.hh
@@ -42,8 +42,8 @@ public:
      * \param temperature the temperature \f$\mathrm{[K]}\f$
      *
      * Henry coefficient See:
-     * Stefan Finsterle (1993, page 29 Formula (2.9)) \cite finsterle1993 <BR>
-     * (nach Tchobanoglous & Schroeder, 1985 \cite tchobanoglous1985 )
+     * Stefan Finsterle (1993, page 33 Formula (2.9)) \cite finsterle1993 <BR>
+     * (fitted to data from Tchobanoglous & Schroeder, 1985 \cite tchobanoglous1985 )
      */
     template <class Scalar>
     static Scalar henry(Scalar temperature)