J. Lambek, The mathematics of sentence structure, American Mathematical Monthly 65, 154–170 (1958) MR106170jstor
J. Y. Girard, Linear logic: its syntax and semantics, In: Girard, J.Y., Lafont, Y., Regnier, L. (eds.) Advances in Linear Logic. London Math. Soc. Lec. Notes 222, pp. 1–42. Cambridge Univ. Press 1995
András Kornai, Mathematical linguistics, Springer 2008
Statistical linguistics, an entry in Oxford International Encyclopedia of Linguistics reproduced here
M. Marcolli, Mathematical and computational linguistics, course materials and bibliography, html