@article{TMF_2016_188_3_a6, author = {M. C. Nucci}, title = {Ubiquitous symmetries}, journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika}, pages = {459--469}, publisher = {mathdoc}, volume = {188}, number = {3}, year = {2016}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TMF_2016_188_3_a6/} }