¡Hemos publicado!

Hemos publicado en Physics Education:
The article (Giving new life to old equipment) can be found in the January 2007 issue of Physics Education: http://www.iop.org/EJ/abstract/0031-9120/42/1/F03
But if you don't have access to the journal, you can find a copy at http://palmera.pntic.mec.es/~fbarrada/crdetector/crdetector.pdf
o, en castellano, en
http://palmera.pntic.mec.es/~fbarrada/crdetector/crd_sp_no_fig.pdf