@techreport{NBERr0134,
 title = "The 'Overtaking' Point Revised",
 author = "Charles Brown",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Reprint Series",
 number = "134",
 year = "1981",
 month = "1981",
 URL = "http://www.nber.org/papers/r0134",
 abstract = {},
}