+See the draft at [https://arxiv.org/abs/2012.11739] for an introduction and description of this code.
+
+PREREQUISITES:
+
+You will need the Lapacke library to run strongsim[1-12]_rellerr.c (in particular, the lapacke.h header).
+For instance, in Debian, you can obtain this by running:
+$ sudo apt install liblapacke-dev
+