@article{o'brien_whitehead_2013, 
  title={Population analysis of Endangered northern bottlenose whales on the Scotian Shelf seven years after the establishment of a Marine Protected Area}, 
  volume={21}, 
  DOI={10.3354/esr00533}, 
  publisher={Inter-Research Science Center}, 
  author={O'Brien and Whitehead}, 
  year={2013}, 
  month={Oct}
  }