Prof. Servet and prof.  Dupré publish and article on Bitcoin in le Temps. The article is available here:

http://www.letemps.ch/Page/Uuid/8f97fc00-9e3f-11e3-ba52-65c0f4739e00/Le…

or can be downloaded here.

Previously Prof. Wyplosz and Bastiaan Quast answered some questions on Bitcoin for the Graduate Institute column. These interviews can be found here:

http://graduateinstitute.ch/home/relations-publiques/news-at-the-instit…

Bastiaan also has a CFD working paper on Bitcoin and Cryptocurrencies.