@article{MAN_1994__298_2_165187,
     author = {Tomohide Terasoma},
     title = {A product formula for period integrals.},
     journal = {Mathematische Annalen},
     pages = {577--590},
     year = {1994},
     volume = {298},
     number = {2},
     zbl = {0811.32014},
     url = {http://geodesic.mathdoc.fr/item/MAN_1994__298_2_165187/}
}