Godard vs Truffaut resource-wise

Recently, while doing some research. I was struck by the contrast between the François Truffaut volume and the Jean-Luc Godard volume of the G K Hall "Guide to References and Resources". The Francois Truffaut volume in that series was published in 1982. It lists 61 pages of articles about Truffaut and 81 pages of articles by Truffaut. The Jean-Luc Godard volume was published 3 years earlier in 1979. It lists 241 pages of articles about Godard but only 24 pages of articles by Godard.