1. Asher, Nicholas. 1993. Reference to abstract objects in English: a philosophical semantics for natural language metaphysics. Studies in Linguistics and Philosophy. Dordrecht: Kluwer.
2. Bach, E., B. Collin, and Marslen-Wilson. 1986. Crossed and nested dependencies in German and Dutch: A psycholinguistic study. Language and Cognitive Processes 1 (4): 249–262.
3. Birner, Betty (2003, November). Discourse functions at the periphery: Noncanonical word order in English. In Proceedings of Dislocated Elements Workshop, ZAS Berlin 41–62.
4. Blühdorn, H. (2007). Subordination and coordination in syntax, semantics and discourse: Evidence from the study of connectives. In Subordination’ versus ‘Coordination’ in Sentence and Text, ed. C. Fabricius-Hansen, 59–85. Amsterdam: Benjamins.
5. Chafe, Wallace. 1976. Givenness, contrastiveness, definiteness, subjects, topics, and point of view. In Subject and Topic, ed. Charles Li, 25–55. New York: Academic Press.