Yourgrau, Wolfgang <br/><br/>
Variational principles in dynamics and quantum theory 
Wolfgang Yourgrau and Stanley Mandelstam 
 - London  Sir Isaac Pitman and Sons  1955 
 - ix, 155p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dynamics<br/>NASA Thesaurus<br/>Quantum theory
<br/><br/><label>Universal Decimal Class. No.: </label>530.145  / YOU