@article{10_4064_aa_67_4_313_322,
     author = {Peter Hellekalek},
     title = {General discrepancy estimates {II:} the {Haar} function system},
     journal = {Acta Arithmetica},
     pages = {313--322},
     publisher = {mathdoc},
     volume = {67},
     number = {4},
     year = {1994},
     doi = {10.4064/aa-67-4-313-322},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-67-4-313-322/}
}