@book{ BA24259714,
  author    = "Endress, Peter K. and Friis, Else Marie",
  title     = "Early evolution of flowers",
  publisher = "Springer-Verlag",
  year      = "1994",
  series    = "Plant systematics and evolution",
  number    = "Supplement ; 8",
  URL       = "http://ci.nii.ac.jp/ncid/BA24259714"
}