diff --git a/FunctionSpace/LocalFunctionSpace.h b/FunctionSpace/LocalFunctionSpace.h
index 374d972b4a25630d58fdd06c3aa7b7ae60f7a9b1..40418ec5980b891cf5545633b06bc37c8b8fe6d4 100644
--- a/FunctionSpace/LocalFunctionSpace.h
+++ b/FunctionSpace/LocalFunctionSpace.h
@@ -1,18 +1,41 @@
 #ifndef _LOCALFUNCTIONSPACE_H_
 #define _LOCALFUNCTIONSPACE_H_
 
+/**
+   @class LocalFunctionSpace
+   @brief Mother class for Local Function Spaces
+   
+   This class is the @em mother (by @em inheritence) of all@n
+   Local Function Spaces.@n
+
+   A Local Function Space is a Basis on which we can interpolate on.
+ */
+
 class LocalFunctionSpace{
  protected:
   bool scalar;
   int  size;
 
  public:
+  //! Deletes this LocalFunctionSpace
+  //!
   virtual ~LocalFunctionSpace(void);
 
+  //! @return Returns:
+  //! @li @c true, if a  
+  //! @em scalar Basis is used 
+  //! @li @c false, if a
+  //! @em vectorial Basis is used
+  //! @see LocalFunctionSpaceScalar
+  //! @see LocalFunctionSpaceVector
   bool isScalar(void) const;
+
+  //! @return Returns the size of the Basis used
   int  getSize(void) const;
 
  protected:
+  //! Instantiate a new LocalFunctionSpace
+  //! @warning Users can't instantiate a LocalFunctionSpace
   LocalFunctionSpace(void);
 };
 
diff --git a/FunctionSpace/LocalFunctionSpaceScalar.h b/FunctionSpace/LocalFunctionSpaceScalar.h
index 04ca7adf44ba64b4ffc7d7911a0576f2d250bfd5..d8b6a0252f3f32946252e0aa56a38fa6551ce3c9 100644
--- a/FunctionSpace/LocalFunctionSpaceScalar.h
+++ b/FunctionSpace/LocalFunctionSpaceScalar.h
@@ -6,13 +6,34 @@
 #include "Basis.h"
 #include "LocalFunctionSpace.h"
 
+/**
+   @class LocalFunctionSpaceScalar
+   @brief Scalar Local Function Spaces
+   
+   A Local Function Space build on a @em Scalar Basis.
+ */
+
 class LocalFunctionSpaceScalar: LocalFunctionSpace{
  protected:
   const std::vector<Polynomial>* basis;
 
  public:
+  //! Instantiate a new LocalFunctionSpaceScalar
+  //! @param basis The Basis used to build 
+  //! this Function Space
   LocalFunctionSpaceScalar(const Basis& basis);
+  
+  //! Deletes this LocalFunctionSpaceScalar
+  //!
   virtual ~LocalFunctionSpaceScalar(void);
+
+  //! Performs an Interpolation
+  //! @param coef The coefficients to use for the
+  //! Interpolation
+  //! @param x,y,z The coordinate of the Interpolation 
+  //! @return Returns the value of the Interpolation
+  double interpolate(const fullVector<double>& coef, 
+		     double x, double y, double z) const;
 };
 
 #endif
diff --git a/FunctionSpace/LocalFunctionSpaceVector.h b/FunctionSpace/LocalFunctionSpaceVector.h
index 1a0ebc7376b0a435fc4de79524e4bf5e2a7c0793..57971f6eb5e7ce7ebfacc5088c5244b1a76ed238 100644
--- a/FunctionSpace/LocalFunctionSpaceVector.h
+++ b/FunctionSpace/LocalFunctionSpaceVector.h
@@ -4,15 +4,37 @@
 #include <vector>
 #include "Polynomial.h"
 #include "Basis.h"
+#include "fullMatrix.h"
 #include "LocalFunctionSpace.h"
 
+/**
+   @class LocalFunctionSpaceVector
+   @brief Vectorial Local Function Spaces
+   
+   A Local Function Space build on a @em Vectorial Basis.
+ */
+
 class LocalFunctionSpaceVector: LocalFunctionSpace{
  protected:
   const std::vector<std::vector<Polynomial> >* basis;
 
  public:
+  //! Instantiate a new LocalFunctionSpaceVector
+  //! @param basis The Basis used to build 
+  //! this Function Space
   LocalFunctionSpaceVector(const Basis& basis);
+
+  //! Deletes this LocalFunctionSpaceVector
+  //!
   virtual ~LocalFunctionSpaceVector(void);
+
+  //! Performs an Interpolation
+  //! @param coef The coefficients to use for the
+  //! Interpolation
+  //! @param x,y,z The coordinate of the Interpolation 
+  //! @return Returns the value of the Interpolation
+  fullVector<double> interpolate(const fullVector<double>& coef, 
+				 double x, double y, double z) const;
 };
 
 #endif