1. 25 years experience with the Bornim Instrumented sphere;Baganz,1992
2. Bruise susceptibility in pome fruits under different loading and storage conditions;Barreiro,1993
3. Assessment of apple damage on packing lines;Brown;Appl. Engin. Agri.,1989
4. Impact classifcation using the Instrumented Sphere;Brown;ASAE paper No. 90-6001,1990