@article{Sommermann, author = {Karl-Peter Sommermann}, title = {Villes et agglom{\´e}rations en Allemagne}, series = {Annuaire europ{\´e}en d'administration publique}, volume = {34.2011}, publisher = {Presses Univ. d'Aix-Marseille}, address = {Aix-en-Provence}, pages = {51 -- 61}, abstract = {.}, language = {fr} }