[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3574 : Microspacecraft and earth observation:the electrical bield(ELF) measurement project : Rep.presented at the AIAA space programs and technologies conf.,Sept.25-28,1990,Huntsville(Al.) / F.J.Redd,T.A.Olsen, 1990. - 7 p. - Текст : непосредственный.