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+@article{dong2018methods,
+  title={Methods for quantifying effects of social unrest using credit card transaction data},
+  author={Dong, Xiaowen and Meyer, Joachim and Shmueli, Erez and Bozkaya, Bur{\c{c}}in and Pentland, Alex},
+  journal={EPJ Data Science},
+  volume={7},
+  number={1},
+  pages={8},
+  year={2018},
+  publisher={Springer}
+}