/// @defgroup experimental Experimental structures and algorithms

 /// This group contains some Experimental structures and algorithms.

 /// The stuffs here are subject to change.

 /// \ingroup experimental

 namespace hugo { }

 /// @defgroup gwrappers Wrapper classes for graphs

 /// @ingroup experimental

 /// This group contains several wrapper classes for graphs

 /// @defgroup graphs Graph structures

 /// @ingroup experimental

 /// This group describes the several graph structures implemented in HugoLib.