@book{Dewitz+2011,
url = {https://doi.org/10.3790/9783428512348},
title = {Der Vertrag in der Lehre Otto Mayers},
title = {},
author = {Ralf Michael Dewitz},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428512348},
isbn = {9783428512348},
year = {2004},
lastchecked = {2011}
}