@article{MAIS_2021_28_1_a1,
     author = {A. V. Smirnov},
     title = {NP-completeness of the minimum spanning tree problem of a multiple graph of multiplicity $k \geqslant 3$},
     journal = {Modelirovanie i analiz informacionnyh sistem},
     pages = {22--37},
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAIS_2021_28_1_a1/}
}