Chan, Konk-Long., [et al] <br/><br/>
Electron densities and scale heights in the topside ionosphere alouette l observations over the America continents  v.4 
by Konk-Long Chan, [et al] 
 -  NASA  1966 
<br/><br/><label>Dewey Class. No.: </label>621.381  / N66.4