Opinion at http://www.law.cornell.edu/supct/html/03-5554.ZO.html
Opinion at http://caselaw.lp.findlaw.com/scripts/getcase.pl?court=us&vol=342&invol=165
Opinion at http://caselaw.lp.findlaw.com/scripts/getcase.pl?court=us&vol=297&invol=278
Opinion at http://caselaw.lp.findlaw.com/cgi-bin/getcase.pl?court=US&vol=378&invol=478
Oral arguments at http://www.oyez.org/cases/1960-1969/1963/1963_615
Opinion at http://supreme.justia.com/cases/federal/us/467/649/case.html
Oral argument at http://www.oyez.org/cases/1980-1989/1983/1983_82_1213/