Citation
If you publish research that uses iGTP you have to cite it as follows:
Chaudhary, R., Bansal, M.S., Wehe, A. et al. iGTP: A software package for large-scale gene tree parsimony analysis. BMC Bioinformatics 11, 574 (2010). https://doi.org/10.1186/1471-2105-11-574