@conference{Ward-2012-5195,
  author = {Ward, P and Needham, K},
  title = {Modelling the Vertical Directivity of Noise from Underwater Drilling},
  year = {2012},
  month = {dec},
  series = {11th European Conference on Underwater Acoustics (ECUA 2012)},
  pages = {9},
  address = {Edinburgh, Scotland},
  publisher = {Acoustical Society of America},
  url = {http://asa.scitation.org/doi/abs/10.1121/1.4773597},
  keywords = {Marine Energy, Wave, Noise},
}