--- branches/development/src/math/CubicSpline.hpp	2010/07/26 19:00:48	1479
+++ branches/development/src/math/CubicSpline.hpp	2011/11/22 20:38:56	1665
@@ -36,7 +36,8 @@
  * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).             
  * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).          
  * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).          
- * [4]  Vardeman & Gezelter, in progress (2009).                        
+ * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
+ * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
  */
  
 #ifndef MATH_CUBICSPLINE_HPP
@@ -53,7 +54,7 @@ namespace OpenMD {
   public:    
     CubicSpline();
     virtual ~CubicSpline() {} 
-    void addPoint(RealType xp, RealType yp);
+    void addPoint(const RealType xp, const RealType yp);
     void addPoints(const vector<RealType>& xps, const vector<RealType>& yps);
     RealType getValueAt(RealType t);
     pair<RealType, RealType> getValueAndDerivativeAt(RealType t);
@@ -64,7 +65,7 @@ namespace OpenMD {
     bool generated;
     RealType dx;
     int n;
-    vector<pair<RealType, RealType> > data;
+    vector<pair<RealType, RealType> > data_;
     vector<RealType> b;
     vector<RealType> c;
     vector<RealType> d;