Vi giro il Banff protocol sul comportamento da tenere nei confronti delle riviste commerciali:
BANFF PROTOCOL
We agree neither to submit to, referee for, nor participate in the operation of any journal that charges an excessively high per page subscription fee, as compared to the average of the 25 highest impact journals in pure mathematics**
Il sito con i dettagli e':
http://members.cox.net/banffprotocol/
Giuseppe