@article{IM_1969__7_141953, author = {W.M. SCHMIDT}, title = {Irregularities of {Distribution.} {IV.}}, journal = {Inventiones mathematicae}, pages = {55--82}, year = {1969}, volume = {7}, url = {http://geodesic.mathdoc.fr/item/IM_1969__7_141953/} }