Andrews, Paul (1999). How the Web was won : Microsoft from Windows to the Web : the inside story of how Bill Gates and his band of internet idealists transformed a software empire (1st ed.). New York: Broadway Books. pp. 244–5. ISBN0-7679-0048-0. OCLC40820951.
Inside out : Microsoft--in our own words. Microsoft Corporation. New York, NY: Warner Books. 2000. p. 30. ISBN0-446-52739-4. OCLC45226466.{{cite book}}: CS1 maint: others (link)