Loewdin, Per-Olov <br/><br/>
A Theoretical Investigation into Some Properties of Ionic Crystals: A Quantum Mechanical Treatment of the Cohesive Energy, the Interiornic Distance, the Elastic Constants, and the Compression to Some Alkali Halides 

 - Uppsala :   Almqvist & Wiksell,   1948. 
 - 126 p. ;   21 cm.