@article{10_4153_CJM_2004_032_3,
     author = {Gaspari, Thierry},
     title = {Bump {Functions} with {H\"older} {Derivatives}},
     journal = {Canadian journal of mathematics},
     pages = {699--715},
     year = {2004},
     volume = {56},
     number = {4},
     doi = {10.4153/CJM-2004-032-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2004-032-3/}
}