Measurement of the 3d-4f transition in Ni-like Er for use in a photopumped x-ray-laser scheme.  [electronic resource] 

 -  Physical review. A, Atomic, molecular, and optical physics  Feb 1995 
 - 1683-1686 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1050-2947 
<br/><br/><label>Standard No.: </label>10.1103/physreva.51.1683  doi