1 “... Policy and Nature Conservation at the University of Göttingen, Germany. He is well experienced in forest...”

2 “... at the Univer­ sity of Gottingen, Germany on July 5 through 28, 1973. The workshop was organized by Professor...”

3 “... Böden und engagierte sich gegen das Waldsterben. Er arbeitete in Waldprojekten der Universität Göttingen...”