@inbook{NBERc4348,
 Crossref = "NBERunkn57-4",
 title = "A Brief View of the Pension Structure",
 author = "Daniel Holland",
 BookTitle = "Suggestions for Research in the Economics of Pensions",
 Publisher = "NBER",
 pages = "3-8",
 year = "1957",
 URL = "http://www.nber.org/chapters/c4348",
}
@book{NBERunkn57-4,
 title = "Suggestions for Research in the Economics of Pensions",
 author = "Daniel Holland",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1957",
 URL = "http://www.nber.org/books/unkn57-4",
}