TY  - BOOK
AU  - Maha Salah Qassim Mohamed,
AU  - A. A. Galal
AU  - H. A. Deebes
AU  - Shahinaz M. Yossef
TI  - Solar Activity and geomagnetic variations
PY  - 1994///
KW  - Solar Activity
KW  - geomagnetic variations
N1  - Thesis (M.Sc.)-Cairo University, 1994; Bibliography: pages 95-99
ER  -