Humboldt-Universität zu Berlin | Thaer-Institute | Horticultural Economics | Employees | MSc. Jochen Flenker | 1685192 Visiting address Invalidenstraße 42 (Hauptgebäude) , Room 1 Phone number (030) 2093-46338 Fax (030) 2093-46331 Mailing address Unter den Linden 6, 10099 Berlin