1. Parkhill D (1966) The challenge of the computer utility. Addison-Wesley Educational, Reading
2. Koomey JG (2007) Estimating total power consumption by servers in the U.S. and the world. Lawrence Berkeley National Laboratory, Stanford University
3. Koch G (2005) Discovering multi-core: Extending the benefits of Moore’s law. Technology@Intel Magazine, ( http://www.intel.com/technology/magazine/computing/multi-core-0705.pdf )
4. Barroso L, Holzle U (2007) The case for energy-proportional computing. IEEE Comput
5. Bohrer P, Elnozahy E, Keller T, Kistler M, Lefurgy C, Rajamony R (2002) The case for power management in web servers. Power Aware Comput 261–289