Akiyama, T., Y. Inoue, M. Shibayama, Y. Awaya, and N. Tanaka. “Monitoring and Predicting Crop Growth and Analysing Agricultural Ecosystems by Remote Sensing”. Agricultural and Food Science, vol. 5, no. 3, May 1996, pp. 367-76, doi:10.23986/afsci.72741.