%0 Journal Article %A V. N. Pyvovarchyk %T Ambarzumian's Theorem for a Sturm--Liouville Boundary Value Problem on a Star-Shaped Graph %J Funkcionalʹnyj analiz i ego priloženiâ %D 2005 %P 78-81 %V 39 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_2005_39_2_a8/ %G ru %F FAA_2005_39_2_a8