Using UAV to Identify the Optimal Vegetation Index for Yield Prediction of Oil Seed Rape (Brassica napus L.) at the Flowering Stage. - Vojtech Lukas; Igor Hunady; Antonín Kintl; Jirí Mezera; Tereza Hammerschmiedt; Julie Sobotková; Martin Brtnicky; Jakub Elbl (Remote. Sens., 2022)