Lerch, S., Ritz, S., Bley, K., Messerschmidt, C., Weiss, C. K., Musyanovych, A., et al. (2015). Nanoprobing the acidification process during intracellular uptake and trafficking. Nanomedicine: Nanotechnology, Biology and Medicine, 11(6), 1585-1596. doi:10.1016/j.nano.2015.04.010.