KAUR, R., MAHEY, R. K., & MUKHERJEE, J. (2010). Optimum time span for distinguishing little canary grass (Phalaris minor) from wheat (Triticum aestivum) crop based on their spectral reflectance characteristics. The Indian Journal of Agricultural Sciences, 80(7). https://epubs.icar.org.in/index.php/IJAgS/article/view/288