Mapping Robusta coffee (Coffea canephora) cropping systems in Uganda: A two-step pixel and sub-pixel based approach with Sentinel-2 data - Getachew Kebede; Bester Tawona Mudereri; Onisimo Mutanga; Tobias Landmann; John Odindi; Natacha Motisi; Fabrice Pinard; Henri E. Z. Tonnang; Elfatih M. Abdel-Rahman (PLoS ONE, 2026)