1. S. Adams. Software updates: Courgette. http://dev.chromium.org/developers/design-documents/software-updates-courgette. Retrieved 13 August 2014. S. Adams. Software updates: Courgette. http://dev.chromium.org/developers/design-documents/software-updates-courgette. Retrieved 13 August 2014.
2. Retrogame Archeology
3. How to fit a large program into a small machine;Blank M. S.;Creative Computing,1980