There are references to the quarrel in the writings of both.
Callimachus attacks Apollonius in the passage at the end of the "Hymn to Apollo", already mentioned, also probably in some epigrams, but most of all in his "Ibis", of which we have an imitation, or perhaps nearly a translation, in Ovid's poem of the same name.

On the part of Apollonius there is a passage in the third book of the "Argonautica" (11.

927-947) which is of a polemical nature and stands out from the context, and the well-known savage epigram upon Callimachus.

[1002] Various combinations have been attempted by scholars, notably by Couat, in his "Poesie Alexandrine", to give a connected account of the quarrel, but we have not data sufficient to determine the order of the attacks, and replies, and counter-attacks.

The "Ibis" has been thought to mark the termination of the feud on the curious ground that it was impossible for abuse to go further.