. . . . "Frequency and the conference of referential validity"@nl . . "Frequency and the conference of referential validity"@en . "16" . "Frequency and the conference of referential validity"@en . . "Frequency and the conference of referential validity"@nl . "Lynn Hasher" . "wetenschappelijk artikel"@nl . "Frequency and the conference of referential validity"@nl . "Frequency and the conference of referential validity"@en . "Frequency and the conference of referential validity"@en . "1977-02-01T00:00:00Z"^^ . . . "107-112" . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F, \u043E\u043F\u0443\u0431\u043B\u0456\u043A\u043E\u0432\u0430\u043D\u0430 \u0432 \u043B\u044E\u0442\u043E\u043C\u0443 1977"@uk . . . . . . "1" . . . . . "10.1016/S0022-5371(77)80012-1" . . . . . . . . "Thomas Toppino" . . "David Goldstein" .