@inbook{NBERc8657,
 Crossref = "NBERkrug91-1",
 title = "Front matter, Trade with Japan. Has the Door Opened Wider?",
 author = "Paul R. Krugman",
 BookTitle = "Trade with Japan: Has the Door Opened Wider?",
 Publisher = "University of Chicago Press, 1991",
 year = "1991",
 month = "January",
 URL = "http://www.nber.org/chapters/c8657",
}
@book{NBERkrug91-1,
 title = "Trade with Japan: Has the Door Opened Wider?",
 author = "Paul Krugman",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press, 1991",
 year = "1991",
 URL = "http://www.nber.org/books/krug91-1",
}