1. Ades, A.E. and M.J. Steedman (1982): “On the order of words”, Linguistics and Philosophy, 4, pp.517–558.
2. Ajdukiewicz, K. (1935): “Die syntaktische Konnexität”, Studia Philosophica
I
, pp. 1–27.
3. Ajdukiewicz, K. (1960): “Zwiazki skladniowe miedzy czlonami zdan oznajmujacych”, Studia Filozoficzne, 6, pp.73–86.
4. Bar-Hillel, Y. (1953): “A quasi-arithmetical notation for syntactic description”, Language 29, pp.47–58.
5. Bar-Hillel, Y., C. Gaifman and C. Shamir (1960): “On categorial and phrase structure grammars”, Bull. Res. Council Israel F
9, pp.155–166.