@article{TMF_1980_44_3_a12,
     author = {S. A. Vladimirov},
     title = {Symmetry groups of~the {Lagrangians} of~chiral fields with values on~$S^2$},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {410--413},
     publisher = {mathdoc},
     volume = {44},
     number = {3},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1980_44_3_a12/}
}