@inbook{NBERc3877,
 Crossref = "NBERcaga78-1",
 title = "What We Have Learned Since the Mid-1960s",
 author = "Philip Cagan and Robert E. Lipsey",
 BookTitle = "The Financial Effects of Inflation",
 Publisher = "NBER",
 pages = "11-66",
 year = "1978",
 URL = "http://www.nber.org/chapters/c3877",
}
@book{NBERcaga78-1,
 title = "The Financial Effects of Inflation",
 author = "Philip Cagan and Robert E. Lipsey",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1978",
 URL = "http://www.nber.org/books/caga78-1",
}