deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 684ee27..7cd9f46 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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@book{aki2002quantitative,  title = {{Quantitative seismology: Theory and methods}}, seismology}},  author = {Aki, Keiichi Keiiti  and Richards, Paul G}, year = {2002},  isbn = {0935702962},  publisher = {University Science Books},  }