@article{TMF_1992_93_3_a5,
     author = {D. Levi and O. Ragnisco and M. A. Rodriguez},
     title = {On non-isospectral flows, {Painlev\'e} equations, and symmetries of differential and difference equations},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {473--480},
     year = {1992},
     volume = {93},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TMF_1992_93_3_a5/}
}