deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 15b5364..65e8c57 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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publisher = {Springer},  year = {2001},  address = {New York},  isbn = {9780387241449}, {978-0-387-24145-6},  }