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\bibitem{Jing_etal2021} Jing, M., Kumar, R., Attinger, S., Li, Q., Lu, C., \& He{\ss}e, F. (2021). Assessing the contribution of groundwater to catchment travel time distributions through integrating conceptual flux tracking with explicit Lagrangian particle tracking. \textit{Advances in Water Resources}, \textit{149}, 103849.

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