@article{TMF_2012_172_1_a3,
     author = {B. A. Dubrovin and T. V. Skrypnik},
     title = {Classical double, $R$-operators, and negative flows of integrable hierarchies},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {40--63},
     publisher = {mathdoc},
     volume = {172},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2012_172_1_a3/}
}