@article{TRSPY_2013_280_a15,
     author = {J. L. Nelson and V. N. Temlyakov},
     title = {Greedy expansions in {Hilbert} spaces},
     journal = {Informatics and Automation},
     pages = {234--246},
     publisher = {mathdoc},
     volume = {280},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2013_280_a15/}
}