_:B7912832b19d5649e57c2685a89199ddd . _:B7912832b19d5649e57c2685a89199ddd . _:B7912832b19d5649e57c2685a89199ddd "2023-05-20"^^ . _:B7912832b19d5649e57c2685a89199ddd . _:B7912832b19d5649e57c2685a89199ddd . _:B7912832b19d5649e57c2685a89199ddd "120653494" . _:B7912832b19d5649e57c2685a89199ddd . _:B7912832b19d5649e57c2685a89199ddd . _:B7912832b19d5649e57c2685a89199ddd . "1951"^^ . "Halper, Edward C. (1951-)" . . _:B7912832b19d5649e57c2685a89199ddd . . "Edward C." . "Halper" . . "Edward C. Halper" . .