"Blumenfeld" . . "bewerker"@nl . . "S.M. Blumenfeld" . "Blumenfeld, Sigismond" . "Blumenfeld, S.M." . "S.M." . . . _:B7308540cc82baf28b52118261c892db6 . _:B7308540cc82baf28b52118261c892db6 . _:B7308540cc82baf28b52118261c892db6 . _:B7308540cc82baf28b52118261c892db6 "2023-05-19"^^ . _:B7308540cc82baf28b52118261c892db6 . _:B7308540cc82baf28b52118261c892db6 . _:B7308540cc82baf28b52118261c892db6 "137117388" . _:B7308540cc82baf28b52118261c892db6 . _:B7308540cc82baf28b52118261c892db6 . _:B7308540cc82baf28b52118261c892db6 .