deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index eac410a..399ff09 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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editor = {Marsden, C. D. and Fahn, S.},  publisher = {Butterworth-Heinemann Ltd.},  address = {Boston},  volume = {3},  pages = {503-517}, {503--517},  isbn = {0 7506 1412 9},  year = {1994},  type = {Book Section},