%0 Journal Article %A V. A. Zharov %T Asymptotic theory of open unstable resonators of telescopic type with an active medium %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1985 %P 578-587 %V 25 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1985_25_4_a8/ %G ru %F ZVMMF_1985_25_4_a8