Two-photon decay in silver and hafnium atoms.  [electronic resource] 

 -  Physical review. A, Atomic, molecular, and optical physics  Jul 1992 
 - 132-141 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1050-2947 
<br/><br/><label>Standard No.: </label>10.1103/physreva.46.132  doi