When referencing Gartner, please follow these guidelines and note the correct corporate name is Gartner, Inc. (the company changed from the name Gartner Group in 2001):
For companies interested in quoting Gartner material in your press announcement, please submit your request to firstname.lastname@example.org. Include the quote you want to use, the original research source and a description of the materials in which the quote will appear. When quoting Gartner research, excerpts and statistics must be used verbatim.
To reproduce or redistribute Gartner materials in their entirety, please submit your request to email@example.com.