. "Roggenkamp, Klaus W. (1940-)" . . . "1940"^^ . "Roggenkamp" . "B0313213 vermeldt abusievelijk I. Klaus W. Roggenkamp. Dit blijkt uit Roggenkamp's eigen homepage op internet." . _:Bc34265904e1fedd7bbe0e8dc2b550a43 . "Klaus W. Roggenkamp" . . "Roggenkamp, I. Klaus W." . "Klaus W." . _:Bc34265904e1fedd7bbe0e8dc2b550a43 . _:Bc34265904e1fedd7bbe0e8dc2b550a43 . _:Bc34265904e1fedd7bbe0e8dc2b550a43 "2023-05-19"^^ . _:Bc34265904e1fedd7bbe0e8dc2b550a43 . _:Bc34265904e1fedd7bbe0e8dc2b550a43 . _:Bc34265904e1fedd7bbe0e8dc2b550a43 "067898440" . _:Bc34265904e1fedd7bbe0e8dc2b550a43 . _:Bc34265904e1fedd7bbe0e8dc2b550a43 . _:Bc34265904e1fedd7bbe0e8dc2b550a43 .