Key points are not available for this paper at this time.
Journal Article Geographic Populations or Biological Species in Phylogeny Reconstruction? Get access Kare Bremer, Kare Bremer Institute of Botany University of StockholmS-106 91 Stockholm, Sweden Search for other works by this author on: Oxford Academic PubMed Google Scholar Hans-Erik Wanntorp Hans-Erik Wanntorp Institute of Botany University of StockholmS-106 91 Stockholm, Sweden Search for other works by this author on: Oxford Academic PubMed Google Scholar Systematic Biology, Volume 28, Issue 2, June 1979, Pages 220–224, https://doi.org/10.1093/sysbio/28.2.220 Published: 01 June 1979
Bremer et al. (1979) studied this question.