John Tulen Network Administrator Name J.J.A. Tulen Telephone +31 71 527 7030 E-mail j.j.a.tulen@issc.leidenuniv.nl Network Administrator ICT Shared Service Centre Infra & Workspace Services Infra Networking Work address Snellius Niels Bohrweg 1 2333 CA Leiden Room number 37 Contact +31 71 527 7030 j.j.a.tulen@issc.leidenuniv.nl Geen relevante nevenwerkzaamheden