%0 Journal Article %A N. L. Aleksandrov %A A. P. Napartovich %A A. F. Pal' %A A. N. Starostin %T A new high-frequency instability of current in media with positive differential conductivity %J Doklady Akademii Nauk %D 1981 %P 1356-1359 %V 256 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1981_256_6_a17/ %G ru %F DAN_1981_256_6_a17