@article{MAN_1983__262_163688,
     author = {David Singman},
     title = {Exceptional {Sets} in a {Product} of {Harmonie} {Spaces.}},
     journal = {Mathematische Annalen},
     pages = {29--44},
     publisher = {mathdoc},
     volume = {262},
     year = {1983},
     zbl = {0489.31012},
     url = {http://geodesic.mathdoc.fr/item/MAN_1983__262_163688/}
}