Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1991_5_3_a0, author = {R. P. Ivanov}, title = {On {Viable} {Solutions} of {Feedback} {Controlled} {System}}, journal = {Mathematica balkanica}, pages = {177}, publisher = {mathdoc}, volume = {5}, number = {3}, year = {1991}, url = {http://geodesic.mathdoc.fr/item/MABA_1991_5_3_a0/} }
R. P. Ivanov. On Viable Solutions of Feedback Controlled System. Mathematica balkanica, Tome 5 (1991) no. 3, p. 177. http://geodesic.mathdoc.fr/item/MABA_1991_5_3_a0/