deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 4b71a70..7a79563 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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journal = {Integrating Materials and Manufacturing Innovation},  publisher = {Springer Science + Business Media},  author = {Campbell, Carelyn E. and Kattner, Ursula R. and Liu, Zi-Kui},   year =  {2014}, }