Radiotomographic reconstruction of ionization dip in the plasma near the earth Andreeva, E. S. ; Galinov, A. V. ; Kunitsyn, V. E. ; Mel'Nichenko, Yu. A. ; Tereschenko, E. E. ; Filimonov, M. A. ; Chernyakov, S. M. Abstract Publication: ZhETF Pisma Redaktsiiu Pub Date: August 1990 Bibcode: 1990ZhPmR..52..783A