@article{ASNSP_2000_4_29_4_807_0,
     author = {Bucur, Dorin and Varchon, Nicolas},
     title = {Boundary variation for a {Neumann} problem},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {807--821},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 29},
     number = {4},
     year = {2000},
     mrnumber = {1822408},
     zbl = {1072.35063},
     language = {en},
     url = {http://archive.numdam.org/item/ASNSP_2000_4_29_4_807_0/}
}