@article{CMUC_1969__10_1_a6,
     author = {Milota, Jaroslav},
     title = {Almost optimal approximations of compact sets in {Hilbert} space},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {121--140},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1969},
     mrnumber = {0262868},
     zbl = {0179.17403},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1969__10_1_a6/}
}