For administrative queries, please contact I.W.C. Hogervorst:
Visiting address:
Sterrenwachtlaan 11
2311 GW Leiden
Postal address:
Postbus 778
2300 AT Leiden
T: +31-(0)71-527-7748
E: gro.r1777027487ivnk@1777027487tcatn1777027487oc1777027487
To contact the Secretary of the Board of the Society, please send an email to gro.r1777027487ivnk@1777027487draob1777027487.
