Freundlich, Erwin <br/><br/>
The foundations of einstein's theory of gravitation 
Erwin Freundlich                                            
 - Cambridge  Cambridge University Press  1920 
 - xvi, 60p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Einstein equations<br/>Gravitation<br/>NASA Thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>530.12  / FRE