@article{TMF_2005_144_2_a0,
     author = {G. A. Alekseev},
     title = {Integrability of {Generalized} {(Matrix)} {Ernst} {Equations} in {String} {Theory}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {214--225},
     publisher = {mathdoc},
     volume = {144},
     number = {2},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2005_144_2_a0/}
}