Comparison of co-located refractory black carbon (rBC) and elemental carbon (EC) mass concentration measurements during field campaigns at several European sites. - Pileci, Rosaria E.; Modini, Robin L.; Bertò, Michele; Yuan, Jinfeng; Corbin, Joel C.; Marinoni, Angela; Henzing, Bas; Moerman, Marcel M.; Putaud, Jean P.; Spindler, Gerald; Wehner, Birgit; Müller, Thomas; et al. (Atmospheric Measurement Techniques, 2021)