Chakraborty, Diptarka; Tewari, Raghunath (2018). "An space and polynomial time algorithm for reachability in directed layered planar graphs". ACM Transactions on Computation Theory. 9 (4): 19:1–19:11. arXiv:1501.05828. doi:10.1145/3154857.
Chakraborty, Diptarka; Tewari, Raghunath (2018). "An space and polynomial time algorithm for reachability in directed layered planar graphs". ACM Transactions on Computation Theory. 9 (4): 19:1–19:11. arXiv:1501.05828. doi:10.1145/3154857.
Nisan, Noam (1992), "RL ⊆ SC", Proceedings of the 24th ACM Symposium on Theory of computing (STOC '92), Victoria, British Columbia, Canada, pp. 619–623, doi:10.1145/129712.129772, S2CID11651375{{citation}}: CS1 maint: location missing publisher (link).
Nisan, Noam (1992), "RL ⊆ SC", Proceedings of the 24th ACM Symposium on Theory of computing (STOC '92), Victoria, British Columbia, Canada, pp. 619–623, doi:10.1145/129712.129772, S2CID11651375{{citation}}: CS1 maint: location missing publisher (link).