@inbook{NBERc4312,
 Crossref = "NBERingr77-1",
 title = "Analyzing Housing Policies with the Urban Institute Housing Model",
 author = "Frank de Leeuw and Raymond J.Struyk",
 BookTitle = "Residential Location and Urban Housing Markets",
 Publisher = "NBER",
 pages = "231-272",
 year = "1977",
 URL = "http://www.nber.org/chapters/c4312",
}
@book{NBERingr77-1,
 title = "Residential Location and Urban Housing Markets",
 author = "Gregory K. Ingram",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1977",
 URL = "http://www.nber.org/books/ingr77-1",
}