@book{2022,
url = {https://doi.org/10.3790/9783428429639},
title = {Die Konzentration in der Wirtschaft / On Economic Concentration},
title = {Erster Band},
author = {},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428429639},
isbn = {9783428429639},
year = {1971},
lastchecked = {2022}
}