Nakhleh, Luay; Ringe, Donald A.; Warnow, Tandy (2005). "Perfect Phylogenetic Networks: A New Methodology for Reconstructing the Evolutionary History of Natural Languages". Language. 81 (2): 382–420. CiteSeerX10.1.1.65.1791. doi:10.1353/lan.2005.0078. S2CID162958.
Warnow, Tandy Jo (1991). Combinatorial algorithms for constructing phylogenetic trees (PhD thesis). University of California, Berkeley. OCLC25765772. ProQuest303937362.
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citeseerx.ist.psu.edu
Nakhleh, Luay; Ringe, Donald A.; Warnow, Tandy (2005). "Perfect Phylogenetic Networks: A New Methodology for Reconstructing the Evolutionary History of Natural Languages". Language. 81 (2): 382–420. CiteSeerX10.1.1.65.1791. doi:10.1353/lan.2005.0078. S2CID162958.
Nakhleh, Luay; Ringe, Donald A.; Warnow, Tandy (2005). "Perfect Phylogenetic Networks: A New Methodology for Reconstructing the Evolutionary History of Natural Languages". Language. 81 (2): 382–420. CiteSeerX10.1.1.65.1791. doi:10.1353/lan.2005.0078. S2CID162958.
Warnow, Tandy Jo (1991). Combinatorial algorithms for constructing phylogenetic trees (PhD thesis). University of California, Berkeley. OCLC25765772. ProQuest303937362.