Analyses that treat determiner omission in terms of weak referentiality have recently been adopted for determinerless PPs. A missing discourse referent is involved in both cases (Farkas and de Swart 2003, Espinal and McNally 2011, de Swart 2012). With regard to the German prepositions mit and ohne, we will show that the former accepts the determiner omission reluctantly, while determiner omissi...