Regensburg can be conveniently reached by plane from major international airports (Munich airport (fastest option) + 1 hour train ride or shared airport shuttle; Frankfurt airport (flights to Frankfurt are often less expensive than to Munich) + 3 hours train ride). From Germany or central Europe, reaching Regensburg by train is a good alternative.
More details can be found following this link.
The conference will take place on the campus of the University of Regensburg, which is 2-3 km away from the City Center. Buses run every 10 minutes. In the registration fee is included a bus ticket, which will entitle you to an unlimited number of rides during the conference within Regensburg.
For Maps follow this link.
Download conference venue map and selected bus lines with time tables (pdf).