Staas de Jong Assistant professor/ Guest Name Dr. A.P.A. de Jong Telephone +31 71 527 2727 E-mail a.p.a.de.jong@ha.leidenuniv.nl Assistant professor/ Guest Honours Academy HA Pre Classes Work address Old Observatory Sterrenwachtlaan 11 2311 GW Leiden Room number 001 Contact +31 71 527 2727 a.p.a.de.jong@ha.leidenuniv.nl No relevant ancillary activities