@ARTICLE{Lundberg_et_al_2009,
  author = {Magnus Lundberg and Mats T{\"o}pel and Bente Eriksen and Johan A.
	A. Nylander and Torsten Eriksson},
  title = {Allopolyploidy in Fragariinae (Rosaceae): Comparing four DNA sequence
	regions, with comments on classification},
  journal = {Molecular Phylogenetics and Evolution},
  year = {2009},
  volume = {51},
  pages = {269--280}
}