Siddiqui, M. M. <br/><br/>
Gram-charlier series distribution for Ionospheric F2 layer characteristics / 
M. M. Siddiqui [and] S. M. Ostrow 
 - Washington, D.C. :  U.S. Government Printing Office,  1967 
 - iv, 40 p. ;  26 cm. 
<br/><br/> ESSA technical report IER 50-ITSA 49 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atmosphere, Upper<br/>Ionosphere<br/>Magnetosphere
<br/><br/><label>Dewey Class. No.: </label>551.514