%0 Journal Article %A Tom Fisher %T On families of 9-congruent elliptic curves %J Acta Arithmetica %D 2015 %P 371-387 %V 171 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa171-4-5/ %R 10.4064/aa171-4-5 %G en %F 10_4064_aa171_4_5