@article{10_4064_sm184_3_5,
     author = {Albrecht Pietsch},
     title = {Bad properties of the {Bernstein} numbers},
     journal = {Studia Mathematica},
     pages = {263--269},
     year = {2008},
     volume = {184},
     number = {3},
     doi = {10.4064/sm184-3-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm184-3-5/}
}