Ah. I was looking at these resources last week and they resolved then just fine: https://erlang.org/pipermail/erlang-questions/2020-November/100198.html

Ah. I was looking at these resources last week and they resolved then just fine: https://erlang.org/pipermail/erlang-questions/2020-November/100198.html https://erlang.org/download/armstrong_thesis_2003.pdf But apparently not anymore.