@article{TMF_2022_210_2_a4,
     author = {D. V. Talalaev},
     title = {Vertex electrical model: {Lagrangian} and nonnegativity properties},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {250--258},
     publisher = {mathdoc},
     volume = {210},
     number = {2},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2022_210_2_a4/}
}