|  1 |    initial version    |  
In the Sage notebook (sagenb) they are findable under "Help", and are normal links.  So if you were at sage.mycampus.edu, then sage.mycampus.edu/doc/live/reference/index.html would be where the live reference manual lived.
I believe the Jupyter notebook has them now too, but I can't answer that for you.
 
                
                Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.