Why Can't I store references in a `std::map` in C++?

Question

I understand that references are not pointers, but an alias to an object. However, I still don\'t understand what exactly this means to me as a programmer, i.e. what are re

Answer 1

This post explains how pointers are implemented under the hood - http://www.codeproject.com/KB/cpp/References_in_c__.aspx, which also supports sebastians answer.