Wolf-Gleissberg cycles
Shehri, S. M. A., I. Sabbah, S. M. Yousef, and M. Y. Amin,
"Solar Forcing On Nile And Cosmic Rays",
Modern Trends in Physics. Fourth International Conference MTPR- 10, Edited by L. El Nadi, Cairo and Sharm El Sheikh Egypt, World Scientific Publishing Co. 978-981-4540-88-1, pp. 33-336, 2013.
Yousef, S., and G. Ali,
"Reduced Solar Wind Speed During the Period 2006-2010",
IAGA2,Solar Wind-Space Environment Interaction, Cairo, Egypt, Cairo University Press, pp. 217-220, 2010.
Yousef, S., and G. Ali,
"Reduced Solar Wind Speed During the Period 2006-2010",
IAGA2,Solar Wind-Space Environment Interaction, Cairo, Egypt, Cairo University Press, pp. 217-220, 2010.
Yousef, S., and G. Ali,
"Reduced Solar Wind Speed During the Period 2006-2010",
IAGA2,Solar Wind-Space Environment Interaction, Cairo, Egypt, Cairo University Press, pp. 217-220, 2010.