31 - Paul Imbs: L'Emploi des temps verbaux en français moderne. Essai de grammaire descriptive, 1960.

32 - Prior.A.N: Formal Logic,Oxford,1955,3 partie, Chap 1.

33 - Prior.A.N: Time and Modality, Oxford, 1957.

34 - Reichenbach.H: Elements of Symbolic Logic, University of California, Berkeley, 1947.

35 - Roman Jakobson: Shifters, Verbal categories and Russian Verb (The Hague, Mouton).

36 - Salem Chaker: (L'aspect verbal), "Aspect (verbe)", Encyclopédie berbère VII, 1989.

37 - Semino, Elena and Jonathan Culpeper (2002). Cognitive Stylistics: Language and Cognition in Text Analysis. Amsterdam and Philadelphia: John Benjamins.

38 - Stockwell, Peter (2002). Cognitive Poetics: An Introduction. London: Routledge.

39 - Tsur, Reuven (2008). Toward a Theory of Cognitive Poetics, Second, expanded and updated edition. Brighton and Portland: Sussex Academic Press.