"The case for determinism in database systems" paper (which described the technology that became Calvin) was written in VLDB 2010. At least one VoltDB developer told me that command logging came from a talk we gave about this paper to your team.
I think that logical logging was an obvious choice given VoltDB architecture. It's totally possible there was a talk that was involved for somebody though.
That said, we <3 determinism at VoltDB and rely on it to achieve what we achieve.
