. . "Conic sections"@en . _:bnode7authoritiessubjectssh85031124 . _:bnode7authoritiessubjectssh85031124 _:bnode8authoritiessubjectssh85031124 . _:bnode7authoritiessubjectssh85031124 . _:bnode8authoritiessubjectssh85031124 . _:bnode8authoritiessubjectssh85031124 "Conic sections"@en . . . . . . . . . . . . "QA485" . "QA559" . . . . . . _:bnode31authoritiessubjectssh85031124 . _:bnode31authoritiessubjectssh85031124 . _:bnode31authoritiessubjectssh85031124 "1986-02-11T00:00:00"^^ . _:bnode31authoritiessubjectssh85031124 "new"^^ . _:bnode31authoritiessubjectssh85031124 . _:bnode38authoritiessubjectssh85031124 . _:bnode38authoritiessubjectssh85031124 . _:bnode38authoritiessubjectssh85031124 "1986-11-22T11:45:22"^^ . _:bnode38authoritiessubjectssh85031124 "revised"^^ . _:bnode38authoritiessubjectssh85031124 .