@article{JFAA_1995__2_2_59467,
     author = {R.A. DeVore and V.N. Temlyakov},
     title = {Nonlinear {Approximation} by {Trigonometric} {Sums.}},
     journal = {The journal of Fourier analysis and applications [[Elektronische Ressource]]},
     pages = {29--48},
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {1995},
     zbl = {0886.42019},
     url = {http://geodesic.mathdoc.fr/item/JFAA_1995__2_2_59467/}
}