The following publications are possibly variants of this publication:
- Ancestor Problems on Pure Pointer MachinesEnrico Pontelli, Desh Ranjan. latin 2002: 263-277 [doi]
- An Optimal Algorithm for Finding NCA on Pure Pointer MachinesAlessandro Dal Palù, Enrico Pontelli, Desh Ranjan. swat 2002: 428-438 [doi]
- The Level-Ancestor problem on Pure Pointer MachinesDesh Ranjan, Enrico Pontelli. ipl, 85(5):275-283, 2003. [doi]
- Sequential and parallel algorithms for the NCA problem on pure pointer machinesAlessandro Dal Palù, Enrico Pontelli, Desh Ranjan. TCS, 352(1-3):108-135, 2006. [doi]