R. KAUR, R. K. MAHEY, and J. MUKHERJEE, “Optimum time span for distinguishing little canary grass (Phalaris minor) from wheat (Triticum aestivum) crop based on their spectral reflectance characteristics”, Indian J Agri Sci, vol. 80, no. 7, Aug. 2010, doi: 10.56093/ijas.v80i7.288.