@article{MZM_2011_89_3_a12,
     author = {V. A. Yurko},
     title = {Inverse {Problem} for {Sturm--Liouville} {Operators} on {Hedgehog-Type} {Graphs}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {459--471},
     publisher = {mathdoc},
     volume = {89},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2011_89_3_a12/}
}