@article{TMF_2000_123_2_a4,
     author = {R. M. Kashaev},
     title = {The pentagon equation and mapping-class groups of punctured surfaces},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {198--204},
     publisher = {mathdoc},
     volume = {123},
     number = {2},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2000_123_2_a4/}
}