@inbook{NBERc7326,
 Crossref = "NBERwise96-1",
 title = "Do 401(k) Plans Replace Other Employer-Provided Pensions?",
 author = "Leslie E. Papke and Mitchell A. Petersen and James M. Poterba",
 BookTitle = "Advances in the Economics of Aging",
 Publisher = "University of Chicago Press",
 pages = "219-240",
 year = "1996",
 month = "January",
 URL = "http://www.nber.org/chapters/c7326",
}
@book{NBERwise96-1,
 title = "Advances in the Economics of Aging",
 author = "David A. Wise",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "1996",
 URL = "http://www.nber.org/books/wise96-1",
}