@article{10_4171_dm_x3,
     author = {Ettore Aldrovandi and Niranjan Ramachandran},
     title = {Cup products, the {Heisenberg} group, and codimension two algebraic cycles},
     journal = {Documenta mathematica},
     pages = {1313--1344},
     year = {2016},
     volume = {21},
     doi = {10.4171/dm/x3},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/x3/}
}