_:B6c601ed091d9b9692ceb25579f0a4bf6 . _:B6c601ed091d9b9692ceb25579f0a4bf6 . _:B6c601ed091d9b9692ceb25579f0a4bf6 "2023-05-22"^^ . _:B6c601ed091d9b9692ceb25579f0a4bf6 . _:B6c601ed091d9b9692ceb25579f0a4bf6 . _:B6c601ed091d9b9692ceb25579f0a4bf6 "069649979" . _:B6c601ed091d9b9692ceb25579f0a4bf6 . _:B6c601ed091d9b9692ceb25579f0a4bf6 . _:B6c601ed091d9b9692ceb25579f0a4bf6 . "Groen" . "Groen, Jaap (jr.)" . "J.A." . "Groen, Jacob Andries (jr.)" . . "J.A. Groen" . . "1987"^^ . "1925"^^ . _:B6c601ed091d9b9692ceb25579f0a4bf6 . "Groen, J.A. (jr. ; 1925-1987)" . . "historicus"@nl .