@misc{indiciaeb81415630cd8,
  title = {Evidence for magma mixing within the Laacher See magma chamber (East Eifel, Germany)},
  author = {G. Worner and T. L. Wright},
  year = {1984},
  url = {https://pubs.usgs.gov/publication/70013715},
  note = {Source identifier: 70013715}
}