@article{AA_2006_18_1_a0,
     author = {D. Auckly and L. Kapitanski and J. M. Speight},
     title = {Geometry and analysis in nonlinear sigma models},
     journal = {Algebra i analiz},
     pages = {3--33},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2006_18_1_a0/}
}