@misc{indiciae2639a727e631,
  title = {Etna erupts again; a VEST report of the March 1981 eruption of Mount Etna, Sicily},
  author = {J. E. Guest and C.R.J. Kilburn and R. M. C. Lopes and J.B. Murray and H. Pinkerton and T.J.O Sanderson and S.C. Scott},
  year = {1981},
  url = {https://pubs.usgs.gov/publication/70170292},
  note = {Source identifier: 70170292}
}