L. Foulet, Petite syntaxe de l'ancien français. Champion,troisì eméemé edition revue, 1928.

R. Futrell, K. Mahowald, and E. Gibson, Quantifying word order freedom in dependency corpora, Proceedings of the Third International Conference on Dependency Linguistics, pp.91-100, 2015.

A. Hulk and A. Van-kemenade, Verb second, pro-drop, functional projections and language change, Clause structure and language change, pp.227-256, 1995.

G. A. Kaiser, Losing the null subject. A contrastive study of (Brazilian) Portuguese and (Medieval) French, Proceedings of the Workshop " Nullsubjects , expletives, and locatives in Romance, pp.131-156, 2009.

E. Keenan, Toward a universal definition of 'subject, 1976.

P. Kiparsky, The rise of positional licensing, Parameters of morphosyntactic change, pp.460-494, 1997.

A. Kroch and B. Santorini, On the word order of Early Old French, 2014.

M. Labelle, Clausal architecture in Early Old French, Lingua, vol.117, issue.1, pp.289-316, 2007.
DOI : 10.1016/j.lingua.2006.01.004

M. Labelle and P. Hirschbühler, Changes in Clausal Organization and the Position of Clitics in Old French, Grammaticalization and Parametric Variation, pp.60-71, 2005.
DOI : 10.1093/acprof:oso/9780199272129.003.0004

A. Ledgeway, From Latin to Romance: Morphosyntactic typology and change, 2012.

C. Marchello-nizia, Histoire de la langue française aux XIVe et XVe sì ecles, 1992.

C. Marchello-nizia and M. Rouquier, De (S)OVàOV`OVà SVO en français: o` u et quand? L'ordre des constituants propositionnels dans la Passion de Clermont et la Vie de saint Alexis, Constructions en changement. Hommagè a Paul Hirschbüler, pp.111-155

E. Mathieu, Stylistic Fronting in Old French, Probus, vol.18, issue.2, pp.219-266, 2006.
DOI : 10.1515/PROBUS.2006.008

T. Mcfadden, The positon of morphological case in the derivation: A study on the syntax-morphology interface, 2004.

H. Pinkster, Latin Syntax and Semantics, 1990.

S. Prévost, Emergence and development of personal pronoun subjects: study of a bilingual Latin-old French corpus

I. Roberts, Verbs and Diachronic Syntax: A Comparative History of English and French, 1993.
DOI : 10.1007/978-94-011-2910-7

I. Roberts, Directionality and word order change in the history of English, Parameters of morphosyntactic change, pp.397-426, 1997.

E. Sapir, Language, an introduction to the study of speech, 1921.
DOI : 10.1037/13026-000

L. Schøsler, La déclinaison bicasuelle de l'ancien français: son rôle dans la syntaxe de la phrase, les causes de sa disparition. InÉtudesIn´InÉtudes romanes de l'Université d'Odense, 1984.

A. Stein and S. Prévost, Syntactic annotation of medieval texts: the Syntactic Reference Corpus of Medieval French (SRCMF), New Methods in Historical Corpus Linguistics. Corpus Linguistics and International Perspectives on Language, pp.75-82, 2013.
URL : https://hal.archives-ouvertes.fr/halshs-01122079

J. D. Sundquist, Morphosyntactic change in the history of the Mainland Scandinavian languages, 2002.

B. Vance, Syntactic change in medieval French. Studies in Natural Language and Linguistic Theory, Boston, 1997.

T. Vennemann, An Explanation of Drift, pp.269-305, 1975.

L. Zaring, On the nature of OV and VO order in Old French, Lingua, vol.121, issue.12, pp.1831-1852, 2011.
DOI : 10.1016/j.lingua.2011.07.008