The study was directly referenced in some works of fiction, and may have been an influence on many more.
The song's lyrics directly reference the plot of the film.
The poem is directly referenced at the start of the book and occasionally thereafter.
Christian poems often directly reference the Bible, while others provide allegory.
Its imagery has been directly referenced in several works.
In the season opener, the writers allowed one of the characters to directly reference the real-life events that inspired the story line.
The vector instructions are register-to-register, meaning that they do not directly reference memory.
The lyrics directly reference a recurring dream Gabriel was having where he swam in his pool drinking cold red wine.
The first field, in particular, is directly referenced by the code produced by Microsoft's own compiler.