@book{Helander+1955,
url = {https://doi.org/},
title = {Das Autarkieproblem in der Weltwirtschaft},
title = {},
author = {Sven Helander},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:},
isbn = {9783428406005},
year = {1955},
lastchecked = {1955}
}