1. Consumer perceptions of quality: Apricots, cantaloupes, peaches, pears, strawberries and tomatoes;Bruhn;Journal of Food Quality,1991
2. Effect of impacting mass on firmness sensing of fruits;Chen;Transactions of the ASAE,1996
3. Optimum procedures for ripening stone fruit. Management of Ripening Fruit (Univ. of California, Davis);Crisosto;Postharvest Horticulture Series,1996
4. Factors in fresh market stone fruit quality;Crisosto;Postharvest News and Information,1995
5. De Ketelaere, B., Ruiz-Altisent, M., Correa, E. C., De Baerdemaeker, J., & Barreiro, P. (2001). Reliability of vibration measurements and impact response characteristics for the quality assessment of tomatoes. 6th international symposium on fruit, nut and vegetable production engineering, Potsdam (pp. 487–492).