@article{AM_2000_151_1_a0,
     author = {J.Marshall Ash and Gang Wang},
     title = {Some spherical uniqueness theorems for multiple trigonometric series},
     journal = {Annals of mathematics},
     publisher = {mathdoc},
     volume = {151},
     number = {1},
     year = {2000},
     url = {http://geodesic.mathdoc.fr/item/AM_2000_151_1_a0/}
}