--- branches/development/src/nonbonded/SwitchingFunction.cpp	2011/01/05 14:49:05	1536
+++ branches/development/src/nonbonded/SwitchingFunction.cpp	2011/11/22 20:38:56	1665
@@ -36,11 +36,13 @@
  * [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).
  */
 
 #include <cmath>
 #include <iostream>
+#include <cstdio>
 
 #include "nonbonded/SwitchingFunction.hpp"
 #include "utils/simError.h"
@@ -143,8 +145,8 @@ namespace OpenMD {
     return;
   }
 
-  bool SwitchingFunction::getSwitch(const RealType &r2, RealType &sw, RealType &dswdr, 
-                                    RealType &r) {
+  bool SwitchingFunction::getSwitch(const RealType &r2, RealType &sw, 
+                                    RealType &dswdr, RealType &r) {
 
     sw = 1.0;
     dswdr = 0.0;