@article{IVM_1996_11_a6,
     author = {O. M. Penkin and Yu. V. Pokornyi},
     title = {On some qualitative properties of equations on a one-dimensional cell complex},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {57--64},
     publisher = {mathdoc},
     number = {11},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1996_11_a6/}
}