Aulus Gellius was a 2nd century Roman Grammarian who wrote a book called Attic Nights. That source is a very readable web page, but the English transcription is incomplete. The text can also be found on Perseus and the PDF is available for download at the Internet Archive.
A reference to Virgil's imitation of Lucretius can be found in the thread here, and a passage on Plutarch's criticism of Epicurus quoted in the 201st episode of the podcast can be found here.
There is also a reference to "Lucius Piso", that being an ancestor of our Piso.