A Lefschetz decomposition for Chow motives of abelian schemes. Klaus Künnemann — 1993 Inventiones mathematicae
Arakelov Chow groups of abelian schemes, arithmetic Fourier transform, and analogues of the standard conjectures of Lefschetz type. Klaus Künnemann — 1994 Mathematische Annalen
Height pairings for algebraic cycles on abelian varieties Klaus Künnemann — 2001 Annales scientifiques de l'École Normale Supérieure