@article{DOCMA_1997__2__a14,
     author = {B\"ottcher, A.},
     title = {On the approximation numbers of large {Toeplitz} matrices},
     journal = {Documenta mathematica},
     pages = {1--29},
     publisher = {mathdoc},
     volume = {2},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_1997__2__a14/}
}