TY  - THES
A1  - Popov, K. V.
A1  - Liperovsky, Viktor A.
A1  - Meister, Claudia-Veronika
A1  - Liperovskaya, E. V.
T1  - Anthropogenic effects with weekly periodicity in the F-region ionosphere
Y1  - 1996
ER  -