Comparing Unsupervised and Supervised Classifiers on Multispectral UAV Data to Detect Crop Water–Nitrogen Co-Limitation. - Frem, Christophe; Wang, Sheng; Nechkovski, Stojanche; Yang, Xiaolin; Zhang, Shaohui; Mukanov, Blagoja; Peng, Junxiang; Kalaitzidis, Chariton; Manevski, Kiril (Applied Sciences (2076-3417), 2026)