对于此项原则，构成例外者，系少数权威著作（Books of Authority），于无相反判例存在时，得视为法源， 作为判例之依据。
双语例句
1
Booksofauthority are all of some antiquity.
权威著作都有点古老色彩。
2
Corbett says what happened was unforgivable but that the NCAA has no authority to ban the school from four years worth of ball games and erase 112 wins from the record books.
The original draft settlement would have given Google sole authority over "orphan works", or out-of-print books whose copyright holder cannot be found.