diff --git a/doc/sgpem2dman.texi b/doc/sgpem2dman.texi
index 275d336..d05507c 100644
--- a/doc/sgpem2dman.texi
+++ b/doc/sgpem2dman.texi
@@ -90,6 +90,11 @@ Free Documentation License''.
 
 @table @strong
 
+@item 2006, January 24th, @r{--- Luca Vezzaro}
+Updated some code snippets whose style were
+inconsistent with our coding rules. Added the point on
+operator overloading to the coding conventions.
+
 @item 2005, December 26th, @r{--- Matteo Settenvini}
 Changed directory layout for @samp{src}. Added 
 @samp{swe/prototypes} to repository layout.
@@ -309,7 +314,8 @@ Labels go indented on the same level of the
 containing code block. For example:
 @example
 @verbatim
-switch(x) {
+switch(x) 
+{
 case 1:
      // foo
 case 2:
@@ -332,7 +338,8 @@ documenting it. For example:
 class C;
       // [...] 
 
-class C {
+class C 
+{
 public:
       // [...]
 };
@@ -546,12 +553,14 @@ containing class. For example:
 @verbatim
 class C;
 
-class C {
+class C 
+{
       class D;
       // ...
 };
 
-class C::D {
+class C::D 
+{
       // ...
 };
 @end verbatim
@@ -559,6 +568,19 @@ class C::D {
 The order for visibility should be: @code{public}, then
 @code{protected}, then @code{private}.
 
+@item
+Use operator overloading with care, only define
+overloaded operators if the use of that operator is a 
+natural way to perform a particular operation on the 
+object(s).
+In case operator overloading is considered the 
+best choice, a lot of operators should still be avoided 
+due to their profound integration with the language, 
+and their tendency to lead to ugly bugs. Some
+examples of these operators are: the casting operator,
+@code{operator delete}, @code{operator new}, 
+@code{operator ^}.
+
 @end enumerate