@article{VsssquezAltenbergerRomer2009,
  author    = {M{\´o}nica Vßsquez and Uwe Altenberger and Rolf L. Romer},
  title     = {Neogene magmatism and its possible causal relationship with hydrocarbon generation in SW Colombia},
  doi       = {10.1007/s00531-008-0303-6},
  url       = {http://www.springerlink.com/content/103695},
  year      = {2009},
}