Please cite the following papers if you use this phylogeny in your publication:
Weissensteiner H, Pacher D, Kloss-Brandstätter A, Forer L, Specht G, Bandelt HJ, Kronenberg F, Salas A, Schönherr S. HaploGrep 2: mitochondrial haplogroup classification in the era of high-throughput sequencing. Nucleic Acids Res. 2016 Jul 8;44(W1):W58-63. doi: 10.1093/nar/gkw233. Epub 2016 Apr 15. PMID: 27084951; PMCID: PMC4987869.
van Oven M. (2015). PhyloTree Build 17: Growing the human mitochondrial DNA tree. Forensic Science International: Genetics Supplement Series, 5.(https://www.sciencedirect.com/science/article/pii/S1875176815302432)