@article{TMF_2010_164_1_a7,
     author = {O. V. Alekseev and M. A. Bershtein},
     title = {The~ring of physical states in the~$M(2,3)$ minimal {Liouville} gravity},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {119--140},
     publisher = {mathdoc},
     volume = {164},
     number = {1},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2010_164_1_a7/}
}