@book{Malpighi2006,
  author    = {Marcello Malpighi},
  title     = {Marcelli Malpighii Philosophi \& Medici Bononiensis {\`e} Regia Societate, Anatomes Plantarum, Pars Altera},
  url       = {http://caliban.mpiz-koeln.mpg.de/~stueber/malpighi/plantarum/index.html},
  year      = {2006},
}