V. B. Shteĭnshleĭger, A. V. Dzenkevich, V. Yu. Manakov, G. S. Misezhnikov, “On overcoming the destructive effect of the ionosphere on the resolution of VHF transionospheric radar for remote sensing of the Earth”, UFN, 168:12 (1998), 1361–1364; Phys. Usp., 41:12 (1998), 1249–1251
