Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{KYB_1968__4_1_a3, author = {Prouza, Ludv{\'\i}k}, title = {Determining the transfer functions from the signal flow graphs}, journal = {Kybernetika}, pages = {--40}, publisher = {mathdoc}, volume = {04}, number = {1}, year = {1968}, zbl = {0153.13401}, language = {en}, url = {http://geodesic.mathdoc.fr/item/KYB_1968__4_1_a3/} }
Prouza, Ludvík. Determining the transfer functions from the signal flow graphs. Kybernetika, Tome 04 (1968) no. 1, p. 40. http://geodesic.mathdoc.fr/item/KYB_1968__4_1_a3/