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In the Fall of 2010, the Bureau of the Census, Geography Division contracted with independent subject matter experts David Cowen, Ph.D., Michael Dobson, Ph.D., and Stephen Guptill, Ph.D. to research five topics relevant to planning for its proposed Geographic Support System (GSS) Initiative; an integrated program of improved address coverage, continual spatial feature updates, and enhanced quality assessment and measurement. One report frequently references others in an effort to avoid duplication. Taken together, the reports provide a more complete body of knowledge. The five reports are: