Encyclopedia of physics  v. 49/7, geohysics III, part VII 
edited by S. Flugge 
 - Berlin  Springer Verlag  1984 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EncyclopediaPhysics
<br/><br/><label>Universal Decimal Class. No.: </label>53(03)  / FLU