@book{Hardach+2011,
url = {https://doi.org/10.3790/9783428519156},
title = {Der Generationenvertrag},
title = {Lebenslauf und Lebenseinkommen in Deutschland in zwei Jahrhunderten},
author = {Gerd Hardach},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428519156},
isbn = {9783428519156},
year = {2006},
lastchecked = {2011}
}