1. Battig, W. F. (1979). The flexibility of human memory. In L. S. Cermak & F. I. M. Craik (Eds.), Levels of processing in human memory (pp. 2344). Hillsdale, NJ: Lawrence Erlbaum Associates, Inc.
2. Beck, I. L. & McKeown, M. G. (1991). Substantive and methodological considerations for productive textbook analysis. In J. P. Shaver (Ed.), Handbook of research on social studies teaching and learning (pp. 496-512). New York: Macrnillan.
3. Bereiter, C. & Scardamalia, M. (1989). Intentional learning as a goal of instruction. In L. B. Resnick (Ed.), Knowing, learning, and instruction: Essays in honor of Robert Glaser (pp. 361-392). Hillsdale, NJ: Lawrence Erlbaum Associates, Inc.
4. Beyer, R. (1987). Psychologische Untersuchungen zur Textverarbeitung unter besonderer Beriicksichtigung des Modells von Kintsch und v. Dijk (1978) [Psychological studies of textprocessing within the framework of the van Dijk and Kintsch model (1978)l. Zeitschriftfiir Psychologie, Suppl.8, 1-96.