"P.A. Scheen" . "2003"^^ . "Scheen, P.A. (1916-2003)" . "1916"^^ . . "sche320" . . "Scheen" . . "Pieter Arie" . "P.A. Scheen" . _:B6e0e3345ac11a9979c22b8565961f846 . . _:B6e0e3345ac11a9979c22b8565961f846 . _:B6e0e3345ac11a9979c22b8565961f846 "2021-02-08"^^ . _:B6e0e3345ac11a9979c22b8565961f846 . _:B6e0e3345ac11a9979c22b8565961f846 . _:B6e0e3345ac11a9979c22b8565961f846 . _:B6e0e3345ac11a9979c22b8565961f846 . _:B6e0e3345ac11a9979c22b8565961f846 .