@inbook{NBERc7801,
 Crossref = "NBERfoss93-1",
 title = "Cost Function Estimation of Quality Change in Semiconductors",
 author = "John Norsworthy and Show-Ling Jang",
 BookTitle = "Price Measurements and Their Uses",
 Publisher = "University of Chicago Press",
 pages = "125-156",
 year = "1993",
 month = "January",
 URL = "http://www.nber.org/chapters/c7801",
}
@book{NBERfoss93-1,
 title = "Price Measurements and Their Uses",
 author = "Murry Foss and Marylin Manser and Allan Young",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "1993",
 URL = "http://www.nber.org/books/foss93-1",
}