@article{MS2_1990__67_2_167135,
     author = {Tomasz Komorowski and Jacek Wosko},
     title = {A remark on the retracting of a ball onto a sphere in an infinite dimensional {Hilbert} space.},
     journal = {Mathematica Scandinavica},
     pages = {223--226},
     publisher = {mathdoc},
     volume = {67},
     number = {2},
     year = {1990},
     zbl = {0754.46017},
     url = {http://geodesic.mathdoc.fr/item/MS2_1990__67_2_167135/}
}