@book{Häberle+2015,
url = {https://doi.org/10.3790/9783428521722},
title = {Der Sonntag als Verfassungsprinzip},
title = {},
author = {Peter Häberle},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428521722},
isbn = {9783428521722},
year = {2006},
lastchecked = {2015}
}