@article{CRMECA_2003__331_8_531_0,
     author = {Marina Yu. Planida},
     title = {Asymptotics for eigenvalues of the {Laplacian} with a {Neumann} boundary condition on a thin cut-out tube},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {531--536},
     publisher = {Elsevier},
     volume = {331},
     number = {8},
     year = {2003},
     doi = {10.1016/S1631-0721(03)00125-6},
     language = {en},
}