Vaas de Wit Student assistant Name V. de Wit Telephone +31 71 527 2727 E-mail v.de.wit@ha.leidenuniv.nl Student assistant Honours Academy HA Honours Classes Work address Old Observatory Sterrenwachtlaan 11 2311 GW Leiden Contact +31 71 527 2727 v.de.wit@ha.leidenuniv.nl No relevant ancillary activities