%0 Journal Article %A Bert van Geemen %T Weil Classes and Decomposable Abelian Fourfolds %J Symmetry, integrability and geometry: methods and applications %D 2022 %V 18 %U http://geodesic.mathdoc.fr/item/SIGMA_2022_18_a96/ %G en %F SIGMA_2022_18_a96