@book{BraunAleAghaBolayetal.2009,
  author    = {Uwe Braun and Nosratollah Ale-Agha and Adrien Bolay and H. Boyle and U. Brielmaier-Liebetanz and D. Emgenbroich and J. Kruse and Volker Kummer},
  title     = {New records of powdery mildew fungi (Erysiphaceae)},
  year      = {2009},
}