Fusion of Optical and SAR Data Using Three Approaches for the Estimation of LAI With Modified Integral Equation Model. - Singh, Shubham Kumar; Prasad, Rajendra; Yadav, Suraj A.; Srivastava, Prashant K.; Singh, Gulab; Srivastava, Hari Shanker (IEEE Geosci. Remote. Sens. Lett., 2024)