On June 9, we will celebrate our 30th anniversary. To mark the occasion, we are organising a scientific symposium and would like to cordially invite our alumni to attend. In addition to the Institute's employees, guests from politics and academia will also be invited.In addition to greetings from politics and science, we will look back on 30 years of successful research work and have the opportunity for personal exchange.This will be followed by a scientific symposium for employees and alumni of the Institute, where current research projects will be presented and many opportunities for networking will be offered. In the evening, we invite you to join us for a get together in a relaxed atmosphere.Please note that the event is by invitation only. For specific queries, please contact the respective secretariats of your (former) departments, for example to arrange any settlement of your travel expenses.Photos and video recordings will be taken at the event.