{"type": {"key": "/type/edition"}, "authors": [{"key": "/authors/OL136147A"}], "isbn_13": ["9783112782972"], "languages": [{"key": "/languages/ger"}], "number_of_pages": 56, "publish_date": "1953", "publishers": ["de Gruyter GmbH, Walter"], "source_records": ["bwb:9783112782972"], "title": "Untersuchungen \u00fcber Einige Fruktifikationen Von Farnen und Pteridospermen", "subtitle": "Aus Dem Mitteleurop\u00e4ischen Karbon und Perm", "full_title": "Untersuchungen \u00fcber Einige Fruktifikationen Von Farnen und Pteridospermen Aus Dem Mitteleurop\u00e4ischen Karbon und Perm", "works": [{"key": "/works/OL42408892W"}], "key": "/books/OL57539166M", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2025-01-24T22:00:25.169732"}, "last_modified": {"type": "/type/datetime", "value": "2025-01-24T22:00:25.169732"}}