@article{MAN_1992__293_4_164980, author = {Chad Schoen}, title = {Some examples of torsion in the {Griffiths} group.}, journal = {Mathematische Annalen}, pages = {651--680}, publisher = {mathdoc}, volume = {293}, number = {4}, year = {1992}, zbl = {0790.14006}, url = {http://geodesic.mathdoc.fr/item/MAN_1992__293_4_164980/} }