@article{SMJ2_2002_28_4_a8,
     author = {Binev, Peter and Dahmen, Wolfgang and DeVore, Ronald and Petrushev, Pencho},
     title = {Approximation {Classes} for {Adaptive} {Methods}},
     journal = {Serdica Mathematical Journal},
     pages = {391--416},
     publisher = {mathdoc},
     volume = {28},
     number = {4},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2002_28_4_a8/}
}