On the Structural Properties of Massive Telecom Call
Graphs: Findings and Implications
https://ebiquity.umbc.edu/_file_directory_/papers/452.pdf
Social Ties and their Relevance to Churn in Mobile
Telecom Networks
https://openproceedings.org/2008/conf/edbt/DasguptaSVCMNJ08.pdf
Calling patterns in human communication dynamics
https://arxiv.org/abs/1301.7173
Post #19
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