For those lucky enough to have access to JSTOR, there is an article on how Plutarch treats the Catiline conspiracy over four biographies, as well as a discussion of Plutarch's working methods and the various styles he applied in the Lives:
Plutarch and Catiline
Author(s): C. B. R. Pelling
Source: Hermes, Vol. 113, No. 3 (3rd Qtr., 1985), pp. 311-329
Published by: Franz Steiner Verlag
Stable URL: http://www.jstor.org/stable/4476443
Alas, I had to skip over the Greek words …
Pelling has written more about Plutarch: Plutarch and History (Classical Press of Wales), however, the price is way out of range for most of us. (ISBN: 0715631284)
Another even more expensive – at this reading – book that has Spelling as a contributor is Essays on Plutarch's Lives, Barbara Scardigli (ed.), Oxford: Clarendon Press, 1995 (ISBN: 0198140762). Here is a Bryn Mawr Classical Review.
Inter-Library Service to the rescue!
Christopher B. R. Pelling is the Regius Professor, Faculty of Classics, Christ Church.
