deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 00d7fc8..22779fe 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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year = {2006},  publisher = {Barcelona. Debate},  }  @article{hiroyuki1994poka,  title = {{Poka-yoke: mistake-proofing for zero defects}},  author = {Hiroyuki, Hirano},  journal = {PHP Institute},  year = {1994},  }