Vorobyov, Sergei Computational Biology and Applied Algorithmics, MPI for Informatics, Max Planck Society; Programming Logics, MPI for Informatics, Max Planck Society;
https://rdcu.be/dttRa (Publisher version)
Vorobyov, S. (1996). An improved lower bound for the elementary theories of trees. In M. A. McRobbie, & J. K. Slaney (Eds.), Proceedings of the 13th International Conference on Automated Deduction (CADE-13) (pp. 275-287). Berlin, Germany: Springer.