@inbook{NBERc10618,
 Crossref = "NBERcorr05-1",
 title = "A New Approach to the Valuation of Intangible Capital",
 author = "Jason G. Cummins",
 BookTitle = "Measuring Capital in the New Economy",
 Publisher = "University of Chicago Press",
 pages = "47-72",
 year = "2005",
 month = "August",
 URL = "http://www.nber.org/chapters/c10618",
}
@book{NBERcorr05-1,
 title = "Measuring Capital in the New Economy",
 author = "Carol Corrado and John Haltiwanger and Dan Sichel",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "2005",
 URL = "http://www.nber.org/books/corr05-1",
}