@article{TMF_2015_185_2_a6,
     author = {S. V. Kozyrev},
     title = {Ultrametricity in the~theory of complex systems},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {346--360},
     year = {2015},
     volume = {185},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2015_185_2_a6/}
}