@article{TMF_1987_71_2_a2,
     author = {E. A. Ivanov},
     title = {Duality in $d=2$ $\sigma$ models of chiral field with anomaly},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {193--207},
     publisher = {mathdoc},
     volume = {71},
     number = {2},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1987_71_2_a2/}
}