@article{AIHPA_1976__25_2_177_0,
     author = {Tahir Shah, K.},
     title = {On the principle of stability of invariance of physical systems},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {177--182},
     year = {1976},
     publisher = {Gauthier-Villars},
     volume = {25},
     number = {2},
     mrnumber = {424095},
     zbl = {0388.58022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AIHPA_1976__25_2_177_0/}
}