@article{TMF_2008_155_1_a11,
     author = {A. V. Penskoi},
     title = {Integrable systems and the topology of isospectral manifolds},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {140--146},
     publisher = {mathdoc},
     volume = {155},
     number = {1},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2008_155_1_a11/}
}