Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1995_9_4_a5, author = {Adrijan V. Borisov}, title = {Subgroups of the {Isometry} {Group} in a {Galilean} {Space} {II:} {The} {Cases} of {Four} and {Five-Parametric} {Subgroups}}, journal = {Mathematica balkanica}, pages = {309}, publisher = {mathdoc}, volume = {9}, number = {4}, year = {1995}, url = {http://geodesic.mathdoc.fr/item/MABA_1995_9_4_a5/} }
Adrijan V. Borisov. Subgroups of the Isometry Group in a Galilean Space II: The Cases of Four and Five-Parametric Subgroups. Mathematica balkanica, Tome 9 (1995) no. 4, p. 309. http://geodesic.mathdoc.fr/item/MABA_1995_9_4_a5/