Weil Descent of Elliptic Curves over Finite Fields of Characteristic Three.

Seigo Arita Weil Descent of Elliptic Curves over Finite Fields of Characteristic Three. 248-258 2000 conf/asiacrypt/2000 ASIACRYPT http://link.springer.de/link/service/series/0558/bibs/1976/19760248.htm db/conf/asiacrypt/asiacrypt2000.html#Arita00