@article{ISU_2009_9_2_a9,
     author = {V. A. Yurko},
     title = {Recovering differential operators on a~bush-type graph},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {59--65},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2009_9_2_a9/}
}