Chang et al. 2015

Chang, Will and Cathcart, Chundra and Hall, David and Garrett, Andrew. 2015. Ancestry-constrained Phylogenetic Analysis Supports the Indo-European Steppe Hypothesis. Language 91. 194–244.

@article{jacquesestimative-chang15ie,
  author  = {Chang, Will and Cathcart, Chundra and Hall, David and Garrett, Andrew},
  journal = {Language},
  number  = {1},
  pages   = {194–244},
  title   = {Ancestry-constrained Phylogenetic Analysis Supports the Indo-European Steppe Hypothesis},
  volume  = {91},
  year    = {2015}
}