The venue is located at the "Bahlsensaal" (F303) in the main building of Leibniz University (Welfen castle). You can use the main entrance, take the stairs to the higher floor and head the hallway to the left, or take the side entrance.
The registration, the coffee breaks and the poster session will be located at the Senatssaal F335. It is directly ahead, when you enter the main entrance and take the stairs.