Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1985__21_3_a3, author = {Do\v{s}l\'y, Ond\v{r}ej}, title = {On transformations of self-adjoint linear differential systems}, journal = {Archivum mathematicum}, pages = {159--170}, publisher = {mathdoc}, volume = {21}, number = {3}, year = {1985}, mrnumber = {833126}, zbl = {0586.34034}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1985__21_3_a3/} }
Došlý, Ondřej. On transformations of self-adjoint linear differential systems. Archivum mathematicum, Tome 21 (1985) no. 3, pp. 159-170. http://geodesic.mathdoc.fr/item/ARM_1985__21_3_a3/