_:B40da6d4a147bb4a73ed2e1cdc7866abc . "Dirk" . "Martens" . "1951"^^ . "Dirk Martens" . . . "Martens, Dirk (1951-)" . . _:B40da6d4a147bb4a73ed2e1cdc7866abc . _:B40da6d4a147bb4a73ed2e1cdc7866abc . _:B40da6d4a147bb4a73ed2e1cdc7866abc "2023-05-22"^^ . _:B40da6d4a147bb4a73ed2e1cdc7866abc . _:B40da6d4a147bb4a73ed2e1cdc7866abc . _:B40da6d4a147bb4a73ed2e1cdc7866abc "173546161" . _:B40da6d4a147bb4a73ed2e1cdc7866abc . _:B40da6d4a147bb4a73ed2e1cdc7866abc . _:B40da6d4a147bb4a73ed2e1cdc7866abc .