"Those early papers are a database that people have worked with ever since."

If not the earliest paper, it was the first to endure.

He was part of a group that published an early paper on penicillin in 1943.

So the authors did the appropriate thing and retracted their earlier paper.

It also includes the joke that a reference to his earlier paper.

Several of his early papers also deal with questions of number theory.

Often, the early paper was an instrument for political influences.

The earlier paper rested in the glimmer of the light.

One of the early papers on this is by Johnson et al., 1968.

Note that the first five rules were introduced in an earlier paper.