1. Compudyne Corp., 120 Union Street. Willimantic, CT 06226.
2. Analysis of video images using an interactive image capture and analysis system;Stutte;HortScience,1990
3. Jandel Scientific. 1993. Java™ Image Analysis Software. Jandel Scientific, San Rafael, CA 94901.
4. A canopy-coverage method of vegetational analysis;Daubenmire;Northwest Sci.,1959
5. A low cost microcomputer-based image analysis system for the measurement of percent ground cover;Stone;Res. Dev. Agric.,1988