%0 Journal Article %A Howard, Benjamin %T Twisted Gross–Zagier Theorems %J Canadian journal of mathematics %D 2009 %P 828-887 %V 61 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2009-044-1/ %R 10.4153/CJM-2009-044-1 %F 10_4153_CJM_2009_044_1