@classmethod
def bookmarksManager(cls):
    """
        Class method to get a reference to the bookmarks manager.
        
        @return reference to the bookmarks manager (BookmarksManager)
        """
    if cls._bookmarksManager is None:
        from .Bookmarks.BookmarksManager import BookmarksManager
        cls._bookmarksManager = BookmarksManager()
    return cls._bookmarksManager
