@article{TMF_1982_53_2_a5,
     author = {R. P. Zaikov},
     title = {Hidden symmetries for some classical field models},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {238--249},
     publisher = {mathdoc},
     volume = {53},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1982_53_2_a5/}
}