Laurent Sagart also contributed to Indo-European studies. He co-authored a proposal that the ability to digest milk played an important role in the Indo-European expansion (Garnier et al. 2017), and took part in a controversy in French academia concerning Indo-European studies (Pellard et al. 2018).
Sagart, Laurent (1982). "A List of Sung Him Tong Hakka words of dubious etymology".Cahiers de Linguistique Asie Orientale.11 (2):69–86.doi:10.3406/clao.1982.1116.ISSN0153-3320.
Sagart, Laurent (1993). "Chinese and Austronesian: Evidence for a Genetic Relationship".Journal of Chinese Linguistics.21 (1):1–63.
Sagart, Laurent (1994). "Proto-Austronesian and Old Chinese Evidence for Sino-Austronesian".Oceanic Linguistics.33 (2):271–308.doi:10.2307/3623130.JSTOR3623130.
Sagart, Laurent;Baxter, William H. (1997). "Word Formation in Old Chinese". In Packard, Jerome L. (ed.).New Approaches to Chinese Word Formation. Perspectives in Analytical Linguistics. Vol. 105.
Sagart, Laurent (1999).The Roots of Old Chinese. Current Issues in Linguistic Theory. Vol. 184. Amsterdam: John Benjamins Publishing.
Pellard, Thomas; Jacques, Guillaume; Sagart, Laurent (2018). "L'indo-européen n'est pas un mythe".Bulletin de la Société de Linguistique de Paris.113 (1):79–102.doi:10.2143/BSL.113.1.3285465.S2CID171874630.[12]
^Sagart, L. (2005) Sino-Tibetan-Austronesian: an updated and improved argument. In L. Sagart, R. Blench and A. Sanchez-Mazas (eds) The peopling of East Asia: Putting together Archaeology, Linguistics and Genetics 161–176. London: RoutledgeCurzon.