[1]
Friedrichs, J. 2000. Environmental problems in an industrial agglomeration: Strategies for solutions from natural science and socio-economic implications at the University of Cologne the special research area 419. Raumforschung und Raumordnung | Spatial Research and Planning. 58, 6 (Nov. 2000), 499–511. DOI:https://doi.org/10.1007/BF03182995.