Prof. Dr. Dietwald Gruhn
environment before and during the SARS-CoV-2 lockdown in a major German city as measured by ecoacoustic indices. In: The Journal of the Acoustical Society of America 152 (2): 1192-1200. https://doi.org/10.1121/10 [...] Enzyklopädie, 2. Aufl. (4): S. 200. K. G. Saur Verlag. München. Gruehn, D. (2006): Gruehn, Werner Georg Alexander. Beitrag in: Vierhaus, R. et al. [Hrsg.]: Deutsche Biographische Enzyklopädie, 2. Aufl. (4): [...] rsity/content/gruehn_2.html Gruehn, D. (2005): The Effect of Urban Open Spaces on the Value of Land and Real Estates in European Cities. In: LI Jidong [Ed.]: Proceedings of the 2nd International Symposium …