%0 Journal Article %A Clark, David %T An Arithmetical Function Associated With the Rank of Elliptic Curves %J Canadian mathematical bulletin %D 1991 %P 181-185 %V 34 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-029-4/ %R 10.4153/CMB-1991-029-4 %F 10_4153_CMB_1991_029_4