Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1971_7_2_a21, author = {E. M. Markushin}, title = {The computation of quadratic functionals for systems with time lag}, journal = {Differencialʹnye uravneni\^a}, pages = {369--370}, publisher = {mathdoc}, volume = {7}, number = {2}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1971_7_2_a21/} }
E. M. Markushin. The computation of quadratic functionals for systems with time lag. Differencialʹnye uravneniâ, Tome 7 (1971) no. 2, pp. 369-370. http://geodesic.mathdoc.fr/item/DE_1971_7_2_a21/