@book{Krieghoff+2020,
url = {https://doi.org/10.3790/9783428408498},
title = {Technischer Fortschritt und Produktivitätssteigerung},
title = {},
author = {Hans Krieghoff},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428408498},
isbn = {9783428408498},
year = {1958},
lastchecked = {2020}
}