@article{AFM_2002_27_1_a10,
     author = {Janne Kauhanen},
     title = {Failure of the condition {N} below {W1,n}},
     journal = {Annales Fennici Mathematici},
     pages = {141--150},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2002_27_1_a10/}
}