@article{10_4007_annals_2009_169_315,
     author = {Charles Fefferman and Bo'az Klartag},
     title = {Fitting a $C^m$-smooth function to data, {I}},
     journal = {Annals of mathematics},
     pages = {315--346},
     publisher = {mathdoc},
     volume = {169},
     number = {1},
     year = {2009},
     doi = {10.4007/annals.2009.169.315},
     mrnumber = {2480607},
     zbl = {1175.41001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.169.315/}
}