diff --git a/Resample/Interparticle/IInterparticleStrategy.cpp b/Resample/Interparticle/IInterparticleStrategy.cpp
index 1a569f7f288aac6275eac2eff689d9e1dd7bf679..dc22615717bff071ecf7e30bff0b9fe94754b0c0 100644
--- a/Resample/Interparticle/IInterparticleStrategy.cpp
+++ b/Resample/Interparticle/IInterparticleStrategy.cpp
@@ -43,6 +43,7 @@ double IInterparticleStrategy::evaluate(const DiffuseElement& ele) const
 
 double IInterparticleStrategy::evaluateSinglePoint(const DiffuseElement& ele) const
 {
+    // functions (scalar|polarized)Calculation are implemented in child classes
     if (!m_polarized)
         return scalarCalculation(ele);
     return polarizedCalculation(ele);