@article{10_4153_CMB_2007_004_3,
     author = {Duyckaerts, Thomas},
     title = {A {Singular} {Critical} {Potential} for the {Schr\"odinger} {Operator}},
     journal = {Canadian mathematical bulletin},
     pages = {35--47},
     year = {2007},
     volume = {50},
     number = {1},
     doi = {10.4153/CMB-2007-004-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2007-004-3/}
}