+@InCollection{cohen70,
+ title = "The Fitting of Pseudopotentials to Experimental Data
+ and Their Subsequent Application",
+ editor = "Frederick Seitz Henry Ehrenreich and David Turnbull",
+ booktitle = "",
+ publisher = "Academic Press",
+ year = "1970",
+ volume = "24",
+ pages = "37--248",
+ series = "Solid State Physics",
+ ISSN = "0081-1947",
+ doi = "DOI: 10.1016/S0081-1947(08)60070-3",
+ URL = "http://www.sciencedirect.com/science/article/B8GXT-4S9NXKG-9/2/ba01db77c8b19c2bab01506d4ea571b3",
+ author = "Marvin L. Cohen and Volker Heine",
+}
+