Coupled-cluster calculations of matrix elements and ionization energies of low-lying states in sodium.  [electronic resource] 

 -  Physical review. A, Atomic, molecular, and optical physics  Jan 1991 
 - 88-94 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1050-2947 
<br/><br/><label>Standard No.: </label>10.1103/physreva.43.88  doi