@article{MAN_1996__304_4_165400,
     author = {Richard M. Hain and Yang Jun},
     title = {Real {Grassmann} polylogarithms and {Chern} classes.},
     journal = {Mathematische Annalen},
     pages = {157--202},
     publisher = {mathdoc},
     volume = {304},
     number = {4},
     year = {1996},
     zbl = {0882.19003},
     url = {http://geodesic.mathdoc.fr/item/MAN_1996__304_4_165400/}
}