@article{10_4064_cm101_2_5,
     author = {Jan Chabrowski},
     title = {On multiple solutions of the {Neumann} problem
 involving the critical {Sobolev} exponent},
     journal = {Colloquium Mathematicum},
     pages = {203--220},
     publisher = {mathdoc},
     volume = {101},
     number = {2},
     year = {2004},
     doi = {10.4064/cm101-2-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm101-2-5/}
}