1. BIM's return on investment;Autodesk,2007
2. The perceived value of building information modeling in the U.S. building industry;Becerik-Gerber;ITcon,2010
3. Case Studies on the Implementation & Benefits of 3D and 4D CAD;CIFE,2005
4. 7.3.3 reduced design coordination errors;Eastman,2008
5. Return on investment analysis of building information modeling in construction;Giel,2010