G. J. Meulenbeld, A History of Indian Medical Literature, Groningen, 1999—2002.
The first volume of the text covers the BIG TRIO or BRHAT TRAYI- the three principal authors /works (Vagbhata's two works are taken together as a unit) Carakasamhita, Susrutha samhita, Astangasamgraha and Astangahradya and the principal commentaries on these treatises.