@@ -9,7 +9,13 @@ using namespace std;
  @file
  @brief C++11
  @defgroup CPP11 C++11 examples
+
+ https://en.wikipedia.org/wiki/C++11
+
+ https://github.com/AnthonyCalandra/modern-cpp-features/blob/master/CPP11.md
+
  @{
+
  @defgroup lang11 Language
  @{
 	https://en.cppreference.com/w/cpp/language/move_constructor
 
@@ -8,6 +8,13 @@ using namespace std;
  @file
  @brief C++14
  @defgroup CPP14 C++14 examples
+
+ https://en.wikipedia.org/wiki/C++14
+
+ https://isocpp.org/wiki/faq/cpp14-language
+
+ https://github.com/AnthonyCalandra/modern-cpp-features/blob/master/CPP14.md
+
  @{
  @defgroup ded14 Deduction
  @{
 
@@ -22,6 +22,13 @@ using namespace std;
  @file
  @brief C++17
  @defgroup CPP17 C++17 examples
+
+ https://en.wikipedia.org/wiki/C++17
+
+ https://github.com/AnthonyCalandra/modern-cpp-features/blob/master/CPP17.md
+
+ https://en.cppreference.com/w/cpp/language/history/17
+
  @{
  @defgroup templ17 Template
  https://en.cppreference.com/w/cpp/language/templates