@article{10_4064_sm_77_5_523_528,
     author = {A. Sharma and Z. Ziegler},
     title = {Walsh equiconvergence for best $l_{2}$-approximates},
     journal = {Studia Mathematica},
     pages = {523--528},
     publisher = {mathdoc},
     volume = {77},
     number = {5},
     year = {1983},
     doi = {10.4064/sm-77-5-523-528},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-77-5-523-528/}
}