Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1988_2_3-4_a3, author = {T. I. Encheva and A. Iu. Levin}, title = {Zeros of {Quasi-Polynomials} and {Linear} {Time-Optimal} {Control} {Problem}}, journal = {Mathematica balkanica}, pages = {296}, publisher = {mathdoc}, volume = {2}, number = {3-4}, year = {1988}, url = {http://geodesic.mathdoc.fr/item/MABA_1988_2_3-4_a3/} }
T. I. Encheva; A. Iu. Levin. Zeros of Quasi-Polynomials and Linear Time-Optimal Control Problem. Mathematica balkanica, Tome 2 (1988) no. 3-4, p. 296. http://geodesic.mathdoc.fr/item/MABA_1988_2_3-4_a3/