Localized Ba 4d and 5p excitations above the ionization limit observed in BaF2.  [electronic resource] 

 -  Physical review. B, Condensed matter  May 1995 
 - 13856-13859 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0163-1829 
<br/><br/><label>Standard No.: </label>10.1103/physrevb.51.13856  doi