1. Aleixos N; Blasco J; Navarrón F; Moltó E (2002). Multispectral inspection of citrus in real-time using machine vision and digital signal processors. Computers and Electronics in Agriculture, 33(2), 121–137
2. Blasco J; Moltó E (2002). Identification of defects in citrus using multispectral imaging. International Conference on Agricultural Engineering, AgEng 02, Budapest, Hungary. EurAgEng Paper No. 02-AE-031
3. Brodie J R; Hansen A C; Reid J F (1994). Size assessment of stacked logs via the Hough Transform. Transactions of the ASAE, 37(1), 303–310
4. Cerruto E; Failla S; Schillaci G (1996). Identification of blemishes on oranges. International Conference on Agricultural Engineering, AgEng 96, Madrid, Spain. EurAgEng Paper No. 96-F-017
5. Dobrzanski B; Rybczynski R (2002). Colour change of apple as a result of storage, shelf-life, and bruising. International Agrophysics, 16, 261–268