Ambarzumian's theorem for trees.
Carlson, Robert ; Pivovarchik, Vyacheslav
Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2007 (2007), / Harvested from The Electronic Library of Mathematics
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Publié le : 2007-01-01
EUDML-ID : urn:eudml:doc:128963 
@article{05243090,
     title = {Ambarzumian's theorem for trees.},
     journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
     volume = {2007},
     year = {2007},
     zbl = {1138.34303},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05243090}
}

Carlson, Robert; Pivovarchik, Vyacheslav. Ambarzumian's theorem for trees.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2007 (2007) . http://gdmltest.u-ga.fr/item/05243090/