@article{Theis+Walle+2017+541+542,
url = {https://doi.org/10.3790/hpb.65.4-6.541},
title = {Technik- und Umweltgeschichte},
title = {},
author = {Frederic TheisHeinrich Walle},
pages = {541--542},
volume = {65},
number = {4–6},
journal = {Das Historisch-Politische Buch (HPB)},
doi = {doi:10.3790/hpb.65.4-6.541},
year = {2017},
lastchecked = {2017-10-01}
}