TY  - GEN
AU  - Nehad Saad Abdelmotelp
AU  - M. A. Hamdy , 
AU  - Osman M. Kamel , 
TI  - first - order planetary theory for the eight principal planets / 
PY  - 1996///
CY  - Cairo : 
PB  - Nehad Saad Abdelmotelp , 
N1  - Thesis(M.Sc.) - Cairo University - Faculty of Science - Department of Astronomy and Meteorology
UR  - http://172.23.153.220/th.pdf
ER  -