found: Office vacancy index of the United States, Mar. 31, 1998:t.p. (CB Richard Ellis)
found: Mixed use development and affordable housing study, 2004:p. 1 (CBRE; CB Richard Ellis)
found: CB Richard Ellis WWW home page, Apr. 28, 2004(CB Commercial changed company name to CB Richard Ellis in 1998)
found: University of Phoenix economic impact and benefits, 2009:t.p. (CBRE Consulting, CBRE, CB Richard Ellis)
found: Wikipedia website, viewed on 3 September 2013:CBRE Group page (CBRE Group, Inc., the company changed its corporate name from CB Richard Ellis Group, Inc. to CBRE Group, Inc. on October 3, 2011)
notfound: CB Commercial office vacancy index of the United States, Sept. 30, 1997: t.p. (CB Commercial)
