Coronavirus - New measures

Dear readers,

Our reading room will remain closed at least until May 31. Before the reading room is reopened, a number of measures must be taken to ensure that social distancing measures are respected (both for readers and for staff).

We remain available by email ( and we try to answer your questions as best we can by electronic means.

We thank you for your patience and understanding during these difficult times.

(photo: Christian Vreugde)