. . "Space optics"@en . _:bnode7authoritiessubjectssh85125944 . _:bnode7authoritiessubjectssh85125944 _:bnode8authoritiessubjectssh85125944 . _:bnode7authoritiessubjectssh85125944 . _:bnode8authoritiessubjectssh85125944 . _:bnode8authoritiessubjectssh85125944 "Space optics"@en . . . . . . . . "QB500.26.S67" . . . . . . _:bnode25authoritiessubjectssh85125944 . _:bnode25authoritiessubjectssh85125944 . _:bnode25authoritiessubjectssh85125944 "1986-02-11T00:00:00"^^ . _:bnode25authoritiessubjectssh85125944 "new"^^ . _:bnode25authoritiessubjectssh85125944 . _:bnode32authoritiessubjectssh85125944 . _:bnode32authoritiessubjectssh85125944 . _:bnode32authoritiessubjectssh85125944 "1993-01-25T15:59:52"^^ . _:bnode32authoritiessubjectssh85125944 "revised"^^ . _:bnode32authoritiessubjectssh85125944 .