TY - RPRT TI - Plasma-beam instabilities in cometary ionospheres AU - Churyumov, Klim I. AU - Kotsarenko, N. YA. AU - Lizunov, G. V. AU - Verkhoglyadova, O. P. PY - 1992 UR - https://ntrs.nasa.gov/citations/19930009952 ID - 19930009952 ER -