@inbook{NBERc10482,
 Crossref = "NBERaesm76-3",
 title = "First Order Dual Control",
 author = "Alfred L. Norman",
 BookTitle = "Annals of Economic and Social Measurement, Volume 5, number 3",
 Publisher = "NBER",
 pages = "311-321",
 year = "1976",
 month = "July",
 URL = "http://www.nber.org/chapters/c10482",
}
@book{NBERaesm76-3,
 title = "Annals of Economic and Social Measurement, Volume 5, number 3",
 author = "Sanford V. Berg, editor",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1976",
 URL = "http://www.nber.org/books/aesm76-3",
}