Pen on printer paper.
 
Emmy Noether is one of the greatest mathematicians and physicists of all time.
 
Further reading:
 
https://genealogy.math.ndsu.nodak.edu/id.php?id=6967
 
https://www-history.mcs.st-andrews.ac.uk/Biographies/Noether_Emmy.html
 
https://en.wikipedia.org/wiki/Emmy_Noether