@article{DAN_1991_318_3_a6,
     author = {Yu. V. Pokorny and I. G. Karelina},
     title = {On the {Green} function for the {Dirichlet} problem on a graph},
     journal = {Doklady Akademii Nauk},
     pages = {542--544},
     publisher = {mathdoc},
     volume = {318},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_318_3_a6/}
}