@article{CRMATH_2004__339_3_175_0,
     author = {Henry, Jacques and Louro, B. and Soares, M.C.},
     title = {A factorization method for elliptic problems in a circular domain},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {175--180},
     publisher = {Elsevier},
     volume = {339},
     number = {3},
     year = {2004},
     doi = {10.1016/j.crma.2004.06.001},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2004.06.001/}
}