@article{UFA_2015_7_4_a8,
     author = {R. Ch. Kulaev},
     title = {Comparison theorems for {Green} function of a~fourth order boundary value problem on a~graph},
     journal = {Ufa mathematical journal},
     pages = {94--103},
     year = {2015},
     volume = {7},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2015_7_4_a8/}
}