1. Jabr, F. (2013), “The reading brain in the digital age: the science of paper versus screens”, Scientific American, available at: www.scientificamerican.com/article.cfm?id=reading-paper-screens.
2. LISNews (2011), “The library war”, LISNews, available at: http://lisnews.org/library_war.
3. Steinberg, N. (2013), “Why do the shelves at Urbana Free Library look so empty?”, Chicago Sun-Times.com , available at: http://heraldnews.suntimes.com/photos/galleries/20929038-417/why-do-the-shelves-at-urbana-free-library-look-so-empty.html.