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 ## References
 
-[//]: # (For a research background regarding IoTrain-Sim, refer to the
-following paper:)
+For a research background regarding IoTrain-Sim, please refer to the
+following:
+* J. Wang, "IoT Training System Using the Cooja NetworkSimulator",
+  master's thesis, March 2019, http://hdl.handle.net/10119/15885
 
 For a list of contributors to this project, check the file
 CONTRIBUTORS included with the source code.
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