The OPARA service was recently upgraded to a new technical platform. You are visiting the outdated OPARA website. Please use for new data submissions. Previously stored data will be migrated in near future and then the old version of OPARA will finally be shut down. Existing DOIs for data publications remain valid.
Contact the person responsible for collection "Digitaler Anhang zur Dissertation Seidler (2016)_Grundlagen für Erholungsplanung. Empirische Untersuchung zu Nutzungsmustern von Parkanlagen."

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