@Article{	  zar:32,
  author	= {Zariski, Oscar},
  title		= {On the {T}opology of {A}lgebroid {S}ingularities},
  journal	= {Amer. J. Math.},
  fjournal	= {American Journal of Mathematics},
  volume	= {54},
  year		= {1932},
  number	= {3},
  pages		= {453--465},
  issn		= {0002-9327},
  doi		= {10.2307/2370887}
}