deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 3b7ef5d..5a77c12 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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number = {1},  pages = {877--885},  author = {David Schroeder and Daniel F. Keefe},  title = {{Visualization-by-Sketching: An Artist{\&}{\#}x0027$\mathsemicolon$s Artist's  Interface for Creating Multivariate Time-Varying Data Visualizations}}, journal = {{IEEE} Trans. Visual. Comput. Graphics},  }