Combining UAV and Sentinel-2 Imagery for Estimating Millet FCover in a Heterogeneous Agricultural Landscape of Senegal. - Ibrahima Diack; Serigne Mansour Diene; Louise Leroux; Abdoul Aziz Diouf; Benjamin Heuclin; Olivier Roupsard; Philippe Letourmy; Alain Audebert; Idrissa Sarr; Moussa Diallo (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2024)