deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 2acfe52..b456ea2 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{Reproduction and recruitment of individually identified humpback whales Megaptera novaeangliae , observed in Massachusetts Bay, 1979{\textendash}1985}},  journal = {Can. J. Zool.},  }  @article{Katona_1981,  doi = {10.1017/s003224740000365x},  url = {http://dx.doi.org/10.1017/s003224740000365x},  year = {1981},  month = {may},  publisher = {Cambridge University Press ({CUP})},  volume = {20},  number = {128},  pages = {439},  author = {S. K. Katona and H. P. Whitehead},  title = {{Identifying Humpback Whales using their natural markings}},  journal = {Polar Record},  }