deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 7c2de4a..c8b24be 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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T. Toscos, A. Faber, S. An, M. Praful Gandhi. Chick clique: persuasive technology to motivate teenage girls to exercise. 1873–1878 (2006).   T. Edensor. Walking in the British countryside: reflexivity, embodied practices and ways to escape. Body and Society 6 (3-4):81-106 (2000).  M. McCullough. Ambient Commons: Attention in the Age of Embodied Information. The MIT Press (2013).  T. W. Powers. Living control systems. [Selected papers 1960-1988.] New Canaan, CT: Benchmark Publications. ISBN 0-9647121-3-X (1989).