@book{Gruen, author = {Gruen, V.}, title = {Die lebenswerte Stadt. Visionen eines Umweltplaners, M{\"u}nchen (Paul List Verlag) 1975.}, language = {de} } @book{Gruen, author = {Gruen, V.}, title = {Ist Fortschritt ein Vervrechen?, Wien (Europaverlag) 1975.}, language = {de} } @article{Gruen, author = {Gruen, V.}, title = {The City in the Automobile Age}, series = {Perspectives (No. 16, 1956), pp. 45ff.}, journal = {Perspectives (No. 16, 1956), pp. 45ff.}, language = {en} }