1. Earned value method and extensions;Anbari;Project Manage J,2003
2. Earned value project management Newtowns Square;Fleming,2000
3. What’s your project’s real price tag?;Fleming;Harvard Bus Rev,2003
4. Schedule is different;Lipke;The Measurable News,2003
5. The estimate at completion problem: a review of three studies;Christensen;Project Manage J,1993