Hagedorn G.A. <br/><br/>
Molecular Propagation through Electron Energy Level Crossings. 
Hagedorn G.A. 
 - Providence  Amer. Math. Soc.  1994 
 - 140 p. 
<br/><br/> Memoirs of the Amer. Math. Soc., Vol. 111, N 536 
<br/><br/><label>Dewey Class. No.: </label>MAMS