Measuring Nanometer Distances in Proteins and Rigid Rulers between 19F and Gd3+ by Integration of 19F-ENDOR Signal Intensities - Martyna Judd; Mian Qi; Elwy H. Abdelkader; Haocheng Qianzhu; Anton Savitsky; Thomas Huber; Jeffrey R. Harmer; Adelheid Godt; Gottfried Otting; Nicholas Cox (Journal of the American Chemical Society, 2025)