Leray, Jean,  1906- <br/><br/>
Lagrangian analysis and quantum mechanics:  a mathematical structure related to asymptotic expansions and the Maslov index/ 
Jean Leray ; English translation by Carolyn Schroeder. 
 - Cambridge, Mass.:  MIT Press,  c1981. 
 - xvi, 271 p. ;  24 cm. 
<br/><br/>Bibliography: p. [269]-271. 
<br/><br/><label>ISBN: </label>0262120879 
<br/><br/><label>LCCN: </label>81018581 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Partial---Asymptotic theory.<br/>Lagrangian functions.<br/>Maslov index.<br/>Quantum theory.
<br/><br/><label>Dewey Class. No.: </label>515.35  / L614l