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+# References
+
+1.  [Debugging with GDB][1]
+1.  Using rr and Visual/VM Debugger to debug Smalltalk/X crash
+
+      * [blog post][2]
+      * [talk at Smalltalks 2019][3]
+
+[1]: https://sourceware.org/gdb/onlinedocs/gdb/
+[2]: https://janvrany.github.io/2018/09/vdb-01.html
+[3]: https://youtu.be/Qbu4ED8wPYE