From Hotel zum Dom it is around 10 minutes walking. Click here for directions.
From Gapsite Hotel it is around 5-10 minutes walking. Click here for directions.
The organization will cover 3 nights of single room accommodation (arriving on Wednesday 5th and departing on Saturday 8th June).
You will have to pay for accommodation at the check-out and will get reimbursed for the period 5-8 June (via the University of Dortmund) and will receive details about this later.