@article{Lundberg2009,
  author    = {Mattias Olof Lundberg},
  title     = {Historiographical problems of the Tonus peregrinus},
  journal   = {Min-Ad: Israel Studies in Musicology Online},
  volume    = {2004},
  url       = {http://www.biu.ac.il/hu/mu/min-ad/},
  year      = {2009},
}