Ahmed Ibrahim Ibrahim Osman <br/><br/>
The artificial night sky glow at kottamia observatory /  
 دراسة الضوء الصناعى المنتشر فى سماء مرصد القطاميه 
Ahmed Ibrahim Ibrahim Osman ; Supervised Zein Elabdin Metwally , Samir Nawar Abdelshahid 
 - Cairo :   Ahmed Ibrahim Ibrahim Osman ,   1996 
 - 118 Leaves :   charts ;   30cm 
<br/><br/>Thesis(M.Sc.) - Cairo University - Faculty of Science - Department of Astronomy and Meteorology